From Lagos to Cape Town, Santiago to Seoul, people want to be cool. “Cool” is a word we hear everywhere – in music, in fashion, on social media. We use it to describe certain types of people.But what exactly makes someone cool? Is it just about being popular or trendy? Or is there something deeper going on?In a recent study I conducted with other marketing professors, we set out to answer a simple but surprisingly unexplored question. What are the personality traits and values that make someone seem cool – and do they differ across cultures?We asked nearly 6,000 people from 12 countries to think of someone they personally knew who was “cool”, “not cool”, “good”, or “not good”. Then we asked them to describe that person’s traits and values using validated psychological measures. We used this data to examine how coolness differs from general likeability or morality. Read more: What makes a person seem wise? Global study finds that cultures do differ – but not as much as you'd think The countries ranged from Australia to Turkey, the US to Germany, India to China, Nigeria to South Africa. Our data showed that coolness is uniquely associated with the same six traits around the world: cool people tend to be extroverted, hedonistic, adventurous, open, powerful, and autonomous.These findings help settle a long debate about what it means to be cool today.A brief history of coolEarly writing on coolness described it as emotional restraint: being calm, composed and unbothered. This view, rooted in the metaphor of temperature and emotion, saw coolness as a sign of self-control and mastery. Some of these scholars trace this form of cool to slavery and segregation, where emotional restraint was a survival strategy among enslaved Africans and their descendants, symbolising autonomy and dignity in the face of oppression. Others propose “cool” restraint existed long before slavery. Regardless, jazz musicians in the 1940s first helped popularise this cool persona – relaxed, emotionally contained, and stylish – an image later embraced by youth and various countercultures. Corporations like Nike, Apple and MTV commercialised cool, turning a countercultural attitude into a more commercially friendly global aesthetic. This is what makes someone coolOur findings suggest that the meaning of cool has changed. It’s a way to identify and label people with a specific psychological profile. Cool people are outgoing and social (extroverted). They seek pleasure and enjoyment (hedonistic). They take risks and try new things (adventurous). They are curious and open to new experiences (open). They have influence or charisma (powerful). And perhaps most of all, they do things their own way (autonomous). This finding held remarkably steady across countries. Whether you’re in the US, South Korea, Spain or South Africa, people tend to think that cool individuals have this same “cool profile”.We also found that even though coolness overlaps with being good or favourable, being cool and being good are not the same. Being kind, calm, traditional, secure and conscientious were more associated with being good than cool. Some “cool” traits were not necessarily good at all, like extroversion and hedonism.What about South Africa and Nigeria?One of the most fascinating aspects of our study was seeing how consistent the meaning of coolness was across cultures – even in countries with very different traditions and values.In South Africa, participants viewed cool people as extroverted, hedonistic, powerful, adventurous, open and autonomous – just like participants from Europe to Asia. In South Africa, however, coolness is especially distinct from being good. South Africa is one of the countries in which being hedonistic, powerful, adventurous and autonomous was much more cool than good. Read more: Which African countries are flourishing? Scientists have a new way of measuring well-being Nigeria was the only country in which cool and uncool people were equally autonomous. So basically, individuality wasn’t seen as cool. That difference might reflect cultural values that place a greater emphasis on community, respect for elders, or collective identity. In places where tradition and hierarchy matter, doing your own thing might not be cool. Social sciences, like all science, however, are not perfect. So, it’s reasonable to speculate that autonomy might still be cool in Nigeria, with the discrepancy resulting from methodological issues such as how the Nigerian participants interpreted and responded to the survey.Nigeria was also unique because the distinction between cool and good wasn’t as notable as in other countries. So coolness was seen more as goodness than in the other countries.Why does this matter?The fact that so many cultures agree on what makes someone cool suggests that “coolness” may serve a shared social function. The traits that make people cool may make them more likely to try new things, innovate new styles and fashions, and influence others. These individuals often push boundaries and introduce new ideas – in fashion, art, politics, or technology. They inspire others and help shape what’s seen as modern, desirable, or forward-thinking.Coolness, in this sense, might function as a kind of cultural status marker – a reward for being bold, open-minded and innovative. It’s not just about surface style. It’s about signalling that you’re ahead of the curve, and that others should pay attention.So what can we learn from this?For one, young people in South Africa, Nigeria, and around the world may have more in common than we often think. Despite vast cultural differences, they tend to admire the same traits. That opens up interesting possibilities for cross-cultural communication, collaboration and influence.Second, if we want to connect with or inspire others – whether through education, branding, or leadership – it helps to understand what people see as cool. Coolness may not be a universal virtue, but it is a universal currency.And finally, there’s something reassuring in all this: coolness is not about being famous or rich. It’s about how you live. Are you curious? Courageous? True to yourself? If so, chances are someone out there thinks you’re cool – no matter where you’re from.Todd Pezzuti received funding from ANID Chile to conduct this research.