How Different Personality Types Make and Keep Friends: A Study

Why Making Friends Is a Personality Question

Making friends is one of the most universal human experiences, yet few people approach it the same way. Some walk into a room hoping for an instant connection. Others hang back, content to observe from a distance before deciding whether anyone is worth the effort. These differences aren’t random. They reflect deep patterns in how our personalities process social information, manage energy, and decide whom to trust. Understanding these patterns can shed light on our own social instincts – and on the very different instincts of the people around us.

To explore how personality shapes the friendship process, we created the “Making Friends” survey, with 17 questions about how people approach new connections, form first impressions, manage how they come across, and build and maintain their social circles. Nearly 8,000 people responded across all 16 personality types, and the results reveal consistent and often dramatic differences at every stage – from the first moment of meeting someone to the long-term question of who gets called a friend.

Which Personality Traits Most Shape Friendship?

Across the full survey, the single strongest predictor of how people approach friendship was whether respondents leaned Introverted or Extraverted. Extraverted personality types were more likely to hope for friendship when meeting someone new. They were also more confident in the impression they leave, less guarded, and quicker to form first impressions. Introverted types, by contrast, scored higher on nearly every measure of caution and selectiveness. The gap was especially wide on guardedness and first-impression confidence, where every Introverted type outpaced every Extraverted type in reserve.

The contrast between Thinking and Feeling types emerged as the second most important divide. Feeling personality types were more likely to give strangers a positive default position and focus on how they were being perceived. They also made more effort to remember names and to classify family members as friends. Thinking types took a more evaluative approach, applying stricter definitions to what counts as friendship. This distinction shaped not just how people meet others but how they categorize and maintain relationships over time.

When these two traits combine, their effects multiply. Analyst personality types (Intuitive, Thinking) – especially INTJ personalities (Architects) and INTP personalities (Logicians) – emerged as the most selective across the board. They reported the smallest friend circles, the lowest friendship conversion rates, and the most friendship drift. Diplomat personality types (Intuitive, Feeling), led by ENFP personalities (Campaigners) and ENFJ personalities (Protagonists), sat at the opposite end of nearly every measure. Between these extremes, Sentinel and Explorer types fell closer to the middle. Their specific positions depended on whether they leaned Thinking or Feeling.

Other personality traits played supporting roles. The Judging and Prospecting distinction influenced how confident people felt about their first impressions and how much they polished their self-presentation. The Assertive–Turbulent spectrum showed up most clearly in questions about first-impression confidence. People Masters (Extraverted, Assertive) reported the highest self-assurance, while Constant Improvers (Introverted, Turbulent) reported the most doubt. Yet even these traits were secondary to the fundamental Introverted–Extraverted and Thinking–Feeling divides that ran through the entire data set.

How Personality Types Approach New People and First Impressions

Before a single word is exchanged, most of us have already set the stage for how a new relationship might unfold. Our survey reveals that personality plays a powerful role in shaping these initial moments – from whether we even hope to make a friend, to how quickly we size someone up, to whether strangers start in our good graces or have to earn their way in. Across all four questions in this section, a clear pattern emerges: Extraverted and Feeling personality types tend to enter social encounters with warmer, more open attitudes, while Introverted and Thinking types are more guarded and selective from the start.

Hoping for Friends vs. Acquaintances

When meeting someone new, most personality types lean toward hoping for friendship rather than a more casual connection – but some lean much harder than others. ENFP personalities topped the survey at 83%, followed closely by ESFP personalities (Entertainers) at 80% and ENFJs at 75%. At the other end of the spectrum, INTJs were most likely to say “Neither” – a striking 40% expressed no particular hope of forming either a friendship or an acquaintanceship. INTPs were similarly split, with roughly a third each choosing “Friends,” “Acquaintances,” and “Neither.”

The Extraverted and Introverted divide tells much of the story here. Every Extraverted type had a clear preference for friendship, while several Introverted types – particularly those with the Thinking trait – were just as likely to want nothing at all from a new encounter. This suggests that for many Analyst personalities, meeting someone new isn’t automatically an invitation to build a relationship. They may need a reason to invest, rather than assuming one will present itself.

Predicting Likability Before a Conversation

Can you tell whether you’ll like someone before you even speak to them? Most respondents said yes. Agreement ranged from a high of 74% among ENTJ personalities (Commanders) to a low of 54% among ISTP personalities (Virtuosos). INFJ personalities (Advocates) were also notably confident in their pre-conversation gut feelings, agreeing at 74%. In general, Intuitive types reported higher confidence in these snap judgments than Observant types.

This makes sense given the Intuitive trait’s association with pattern recognition and reading between the lines. INFJs and ENTJs, despite having very different social styles, share an Intuitive core that may fuel their trust in early impressions. Meanwhile, Observant types like ISTPs and ISFP personalities (Adventurers) – who agreed at only 58% – may prefer to gather more concrete, real-time information before making up their minds. The gap isn’t enormous, but it’s consistent: personality shapes not just how we approach others but how confident we feel in those early reads.

The Speed of First Impressions

Most respondents form their first impression fast. Across nearly every personality type, the most common answer was “1–10 minutes.” ESTJ personalities (Executives) led the pack, with 69% saying they make up their minds in under 10 minutes, followed by ESTP personalities (Entrepreneurs) at 63% and ENTJs at 62%. At the other end, INTJs and INTPs were the most likely to say their impressions take more than 30 minutes to form – 23% and 22% respectively chose this option, suggesting a much more deliberate evaluation process.

The Judging and Prospecting traits also play a role, but the clearest divide is once again between Extraverted and Introverted types. Extraverts, who tend to be more energized by social interaction, appear quicker to reach a verdict. Introverts – especially those in the Analyst Role – seem more inclined to reserve judgment, perhaps because they prefer to observe longer before drawing conclusions. It’s worth noting that taking more time doesn’t necessarily mean being indecisive; for many Introverted types, a slower assessment may reflect a more careful, deliberate approach to new people.

Default Friendship Position for New People

When meeting someone new, some people automatically put up protective barriers. Others assume the best, or nothing at all. Feeling types were far more likely to assign a positive default: ENFPs and ENFJs both placed new people in a positive position over 50% of the time. Meanwhile, Analyst types like INTPs and INTJs are more likely to take a neutral position when meeting new people.

Beyond the obvious differences between Introverted and Extraverted personality types, the Thinking–Feeling divide appears to be the strongest predictor here. Thinking types overwhelmingly gravitate toward a neutral default, while Feeling types are more willing to extend warmth right away. What stands out most is that very few respondents of any type assign a negative default – even among INTJs, only 12% do so. In other words, while Thinking and Introverted types may not roll out the welcome mat, they’re rarely hostile either. The real divide is between those who start warm and those who start cautiously neutral, waiting to see what unfolds.

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How Often Are First Impressions Wrong?

First impressions are fast, but are they accurate? And when they turn out to be wrong, do people end up thinking better or worse of the person they misjudged? Our survey data reveals that personality plays a clear role in both answers. Judging types reported the most confidence in their initial reads, while Prospecting types were more likely to admit their impressions missed the mark. The encouraging finding is that when people do revise their views, they almost always revise upward.

Frequency of Wrong First Impressions

Most respondents said their first impressions are rarely or only sometimes wrong – but the balance between those two answers varied a lot by type. Judging types expressed the strongest confidence in their initial reads: ENFJs led at 58% saying their first impressions are rarely wrong, with ENTJs close behind at 57%. At the other end of the spectrum, ISTPs were the least confident in their snap judgments – only 30% said they rarely get a first impression wrong. INFP personalities (Mediators) showed a similar willingness to question their own accuracy, with a clear majority saying their initial reads are at least sometimes off target.

The Judging–Prospecting divide is the strongest predictor of confidence in first impressions. Judging personality types, who tend to reach conclusions decisively, appear more inclined to trust and stand by their initial assessments. Prospecting types, who are naturally more flexible, seem readier to acknowledge when their first read missed something. INTPs were the standout example, with 13% choosing “Often” wrong – the highest rate of any personality type. Rather than reflecting poor social instincts, though, this willingness to revise may mean that Prospecting types treat early impressions as working hypotheses, subject to change as they learn more about a person.

Positive vs. Negative Impression Revisions

When first impressions turn out to be wrong, the correction is usually a pleasant one. Across nearly every personality type, respondents said their revised view of someone tends to lean more positive than their original impression. ESTJs and ENFJs led this trend at 63% and 62% respectively. The lone exception? ENTP personalities (Debaters) were the only type to tip slightly negative – 51% said their later impression tends to be worse than their first, making them a genuine outlier in an otherwise optimistic data set.

This broadly positive trend carries an encouraging takeaway: when people take a second look at someone they’ve misjudged, they’re more likely to discover hidden qualities than hidden flaws. The ENTP exception fits that type’s well-documented skepticism – as natural devil’s advocates who enjoy testing ideas and people alike, they may initially give others the benefit of the doubt only to become more critical over time. It’s also worth noting that ISTPs and ISFPs, who were among the most likely to admit their first impressions are sometimes wrong, both reported strong positive revision rates at 57% and 58%. For these personality types, taking extra time to assess people appears to pay off with warmer views in the end.

How Personality Types Manage Self-Presentation in First Meetings

Meeting someone new isn’t just about sizing the other person up – it’s also about managing how you come across. Our survey data shows that personality plays a major role in how confident people feel about their first impressions, how much effort they put into presenting a polished version of themselves, and whether they keep their guard up or let it down. Across these five questions, the Introverted–Extraverted and Thinking–Feeling divides emerged as especially strong predictors, with Extraverted and Feeling types tending to invest more conscious effort in how they’re perceived – and feeling better about the results.

Confidence in Leaving a Good First Impression

Feeling confident about the impression you leave is far from universal. ENFJs reported the highest confidence, with 87% saying they usually feel like they leave a good first impression. ESTJs and ENTJs were close behind, both above 85%. At the opposite end, INTPs expressed the lowest confidence at just 34%, with ISTPs not far ahead. Every Extraverted type scored above 71%, while every Introverted type fell below 59% – making this one of the sharpest Extraversion–Introversion divides in the entire survey.

This gap likely reflects more than just social skill. Extraverted types tend to draw energy from social interaction, which often translates into greater confidence about how they come across in the moment. Introverted types process social exchanges more internally and are often less certain about how they're received, even when the encounter has gone fine. The Assertive–Turbulent spectrum stacks onto this divide: Assertive types bring higher baseline self-assurance, while Turbulent types lean toward self-doubt and a sharper sensitivity to how others perceive them – a combination that can make even a perfectly good first impression feel uncertain. The Feeling trait also played a supporting role: INFJs and ISFJ personalities (Defenders), despite being Introverted, outpaced all Introverted Thinking types, suggesting that emotional attunement gives Feeling types a bit more confidence that they're connecting with others.

How Polished People Present Themselves

When it comes to curating a first impression, some personality types put noticeably more effort into the presentation. ENTJs led the “Very polished” category at 31%, while ESFJ personalities (Consuls) had the highest combined polish rate – 90% said their self-presentation was at least “Somewhat polished.” At the other extreme, ISTPs were the least likely to polish their presentation, with 42% describing themselves as “Hardly polished” or “Not polished at all.” INTPs were nearly as unpolished, with 39% choosing those same options.

The Judging trait appears to play a key role here. Judging types, who value structure and preparation, were more likely to present a carefully managed version of themselves. Prospecting types, who prefer spontaneity and authenticity in the moment, were less inclined to curate their image. ISFPs were a notable example – despite being a Feeling type often described as warm and charming, only 8% said they present a “Very polished” version of themselves. For these Explorer personalities, being genuine in the moment may matter more than looking put-together.

Keeping Your Guard Up with New People

Guardedness when meeting new people was one of the most lopsided results in the survey, and the dividing line was Introversion. INTJs reported the highest rate of keeping their guard up at 93%, and every Introverted type scored above 80%. Among Extraverted types, the numbers dropped significantly – ENFPs were the least guarded at just 54%, and even the most guarded Extravert, ENTJs at 75%, fell well short of any Introverted type.

What’s interesting is that guardedness doesn’t simply mirror social discomfort. INFJs and ISFJs, both known for their warmth and care for others, were still firmly in the 85–89% range. For these Diplomat and Sentinel personalities, keeping a guard up may not mean being cold – it may mean being cautious about who gets access to their inner world. Meanwhile, ENFPs’ low guardedness aligns with their reputation as open-hearted and trusting individuals who lead with warmth rather than caution. The data paints a nuanced picture: being guarded is not the same as being unfriendly, and being open is not the same as being naive.

Focus on Evaluating vs. Being Evaluated

When meeting someone new, do you spend more mental energy sizing them up or worrying about how you’re coming across? The answer depends heavily on whether someone leans Thinking or Feeling. Thinking types consistently focused on forming their own impression of the other person – ENTJs and INTJs were virtually tied near 59%, with ENTPs close behind at 58%. Feeling types flipped the script: INFPs were most focused on the other person’s impression of them at 62%, and ISFJs and ESFJs both came in around 61%.

This split makes sense when you consider what each trait prioritizes. Thinking types tend to approach interactions more analytically, evaluating whether the other person meets their standards. Feeling types, who are more attuned to social harmony and emotional connection, may naturally be more aware of – and invested in – how they’re being received. It’s worth noting that this difference isn’t absolute. Even among Thinking types, a substantial portion still cared about the impression they were making, and many Feeling types cared about their own assessment of the other person. But the general tilt was clear and consistent across all 16 types.

Effort to Remember New Names

Remembering someone’s name is a small act, but it signals attention and care – and the data shows that some personality types invest more effort in it than others. ENFJs again topped the list at 88%, with several other Feeling and Judging types – including ESTJs, ISFJs, and ESFJs – all scoring above 84%. At the bottom, INTPs reported the lowest effort at just 58%, and INTJs weren’t far ahead. The gap between the highest and lowest types was a full 30 percentage points.

The Feeling and Judging traits both appear to drive this behavior. Feeling types, who tend to prioritize interpersonal connection, may see name recall as a meaningful gesture of respect. Judging types, who value structure and follow-through, may treat it as a social responsibility worth the effort. The combination is powerful – Social Engagers (Extraverted, Turbulent) and Confident Individualists (Introverted, Assertive) showed the widest internal variation, depending on whether their other traits leaned Feeling or Thinking. For INTPs and INTJs, the lower effort likely isn’t rudeness – it may reflect a personality that prioritizes the content of a conversation over its social rituals.

Personality and the Shifting Line Between Friends and Acquaintances

Social circles vary enormously by personality type – and so does the ease with which people move between the categories of “friend” and “acquaintance.” Our survey data shows that Extraverted Feeling types tend to build the largest friend networks, convert acquaintances to friends most readily, and even classify family members as friends at higher rates. Meanwhile, Introverted Thinking types maintain smaller, more tightly curated circles – and are more likely to see friends drift back into acquaintanceship. Together, these six questions reveal that personality doesn’t just shape how many people we know but how firmly or loosely we draw the lines around closeness.

Rate of Turning New People into Friends

How often does meeting someone new turn into a genuine friendship? For Extraverted Feeling types, it happens quite regularly. Over half of ENFPs (53%) and ESFJs (53%) said that roughly 1 in every 10 new people they meet becomes a friend, and ENFJs and ESFPs were close behind at about 51% each. INTJs reported the lowest conversion rate by a wide margin – 30% said only about 1 in 1,000 new people ever becomes a friend, the highest rate of any personality type for that answer.

The Feeling and Extraversion traits together appear to drive these differences. Extraverted Feeling types treat new encounters as natural opportunities for connection, while Introverted Thinking types apply a much stricter filter. Among INTJs, more respondents chose “1 in 1,000” than “1 in 10” – a complete inversion of the pattern seen in ENFPs. This selectiveness likely reflects higher standards for what qualifies as genuine friendship rather than a lack of social ability. For many Analyst personalities, earning the label “friend” may require clearing a much higher bar.

Current Number of Friends

How many friends do people currently have? The answers varied dramatically across personality types. ESTPs reported the largest networks, with 55% saying they have 10 or more friends. ENFPs and ENFJs were close behind at about 50% each. At the other extreme, half of all INTJs said they currently have just 1 to 3 friends, and 44% of INTPs reported the same. The gap between the most and least social types was stark – a roughly 47-percentage-point spread on the “10 or more” answer alone.

The Introversion–Extraversion divide was the strongest factor, but it wasn’t the whole story. ESTJs, despite being Extraverted, had one of the smaller friend circles among Extraverts, with only 29% saying 10 or more. This suggests that the Thinking trait plays a limiting role too, keeping some Extraverted types more selective even when they’re comfortable in social settings. For Introverted types, smaller circles don’t necessarily signal loneliness. Many of these personality types have described their ideal social life as having just a few close friends – and the data confirms that this is exactly what they tend to build.

Current Number of Acquaintances

How many acquaintances do people currently have? Acquaintance networks were larger than friend circles for every personality type, but the spread between types was still noteworthy. ESTJs and ESTPs reported the broadest pools, with roughly 66% each saying they have 16 or more acquaintances. On the opposite end, ISTPs had the smallest acquaintance circles – only 32% reported 16 or more. INTPs and ISFPs hovered around 35%, not far ahead.

What stands out is how the gap between Extraverted and Introverted types narrows here compared to the friend question. Even ISTPs – the personality type with the fewest acquaintances – still had nearly a third reporting 16 or more. Acquaintanceships appear to accumulate more naturally over time, regardless of personality. The Thinking–Feeling distinction mattered less here as well, pointing to a useful insight: while personality heavily shapes how many people we call friends, it has a smaller influence on how many people we simply know.

Acquaintances Becoming Friends

How often does an acquaintance cross the line into friendship? For Extraverted Feeling types, it’s a regular occurrence – about 28% of ESFPs and ENFJs said this happens “Often.” INTJs showed the sharpest contrast: just 3% said acquaintances often become friends, while 60% said it rarely happens. ISTJ personalities (Logisticians) and ISFJs were also on the low end, both hovering around 5% for “Often.”

These results map closely onto the earlier friendship-conversion data, reinforcing a consistent pattern across personality types. Types that make new friends easily also promote acquaintances into the friend category more readily. For Analyst and Sentinel types – especially those who are Introverted – the barrier between acquaintance and friend is steep. This doesn’t necessarily mean they’re unfriendly. Rather, they may set a higher bar for what it means to call someone a friend, making the transition a rarer but possibly more meaningful event.

Friends Drifting Back to Acquaintances

Friendships don’t always hold. When asked how often a friend drifts back into acquaintance territory, INTPs were the most likely to say “Often” at 27%, followed by INTJs at 24%. On the other end, ESTJs were least likely to report this kind of fade at just 6%, and ENFPs came in at 11%. Overall, Introverted Thinking types experienced the most friendship drift, while Extraverted and Judging personality types tended to hold their circles steady.

There’s an interesting tension in this data. The types that reported having the fewest friends were also the most likely to say their friendships sometimes slip back into acquaintanceship. This could reflect higher standards – a friend who stops meeting an Analyst’s expectations may simply get reclassified. It could also be a natural consequence of being less socially proactive: without regular contact, even meaningful connections can quietly erode. For Extraverted Feeling types, whose social energy keeps relationships active, this kind of drift is far less common. The data suggests that for some personality types, the boundaries of friendship are not only harder to enter but also easier to exit.

Family Members as Friends or Acquaintances

Whether people view their own family members as friends or acquaintances turned out to be one of the most evenly split questions in the survey – and personality was a strong predictor of which way people leaned. ENFJs (65%) and ESFJs (65%) were the most likely to consider family members friends. INTPs were the least likely at just 37%, and ENTPs – despite being Extraverted – also leaned toward the acquaintance label, with 54% classifying family that way.

The Feeling trait appears to be the single strongest factor here. Every Feeling type was more likely than its Thinking counterpart to call family members friends. This aligns with how the Feeling trait works more broadly – these personality types tend to define relationships through emotional closeness and personal connection, qualities that naturally overlap with most people’s idea of friendship. Thinking types may apply a more practical definition, one that doesn’t automatically include family regardless of how much they value those bonds. Calling a relative an “acquaintance” isn’t necessarily cold – it may reflect a narrower view of what friendship means.

What Personality Reveals About Friendship

The data paints a clear picture: personality shapes every stage of the friendship process. From the moment we meet someone new, our traits influence whether we hope for a connection or prefer to keep things casual. They shape how quickly we form impressions and whether we lead with warmth or caution. These patterns aren’t scattered. They follow the same trait-based divides, question after question, across thousands of respondents.

Perhaps the most striking finding in the survey is the range of friendship conversion rates. Over half of ENFPs said they befriend roughly 1 in 10 new people they meet. Meanwhile, 30% of INTJs put the number closer to 1 in 1,000. That is an enormous gap, and it highlights just how differently personality types experience the same social world. The same classroom or party can feel rich with potential connections for one type. For another, it’s simply a room full of strangers.

But none of these differences suggest there is a single correct way to make friends. Having three close friends is not less valid than having thirty. The types that are most selective tend to invest deeply in the connections they do form. The types that are most open bring warmth and energy that make social spaces better for everyone. Whatever your personality type, the data points in the same direction. Working with your social instincts – rather than against them – is the most reliable path to friendships that genuinely fit.