How Friendships Form
Humor and Fun: The Underrated Friendship Catalysts
Shared laughter and fun are among the least studied yet potentially most underrated factors in friendship formation. Experiments show that strangers who share a humorous experience feel closer afterward than control pairs. Humor acts as a catalyst — it accelerates what would otherwise take weeks.
Why Is Humor Important in Friendships?
Friendship conversations differ from acquaintance conversations through more joking, teasing, and informality(Planalp & Benson, 1992). The experienced amount of fun and joy significantly predicts satisfaction with friendships for both genders (Hays & Oxley, 1986; Jones, 1991).
Even in toddlers, shared play serves as the primary criterion for identifying friendships. In older children, the ability to be entertaining and humorous ranks among the most important social skills for building friendships (Samter, 2003).
Laughter and Endorphins
Shared laughter activates the endorphin system — similar to exercising together, singing, or physical touch. The released β-endorphins create a feeling of warmth, connectedness, and relaxation — the biochemical foundation of bonding.
Laughter is one of the most effective ways to release endorphins without physical contact. This makes it a particularly accessible bonding mechanism — even in cultures with less physical touch.
Fun as a Friendship Rule
“Striving to make shared time enjoyable” is one of the six core rules of friendship (Argyle & Henderson, 1984). Fun is therefore not just a pleasant side effect but a normative expectation.
Hays (1984) identified companionshipas one of four central interaction categories in friendships. By week twelve it was one of the categories most strongly correlated with friendship intensity (r = .70).
Humor Accelerates Friendship Formation
Fraley and Aron (2004) tested this experimentally: pairs of strangers performed activities that either generated humor (e.g. playing tag blindfolded) or did not. The humor pairs reported significantly greater closeness.
Two mechanisms explain the effect: self-expansion— the feeling of gaining a new perspective through the other person — and distraction from initial self-consciousness. Humor thus eases the transition to self-disclosure.
Humor as a Social Filter
Humor also acts as a filter: similar humor signals similar values, intelligence, and worldview. People who laugh at the same things likely share other attitudes too. Humor thus becomes a quick compatibility check.
But be careful: humor that is misunderstood or comes at others’ expense can also hinder friendship formation. Gender differences play a role as well: men cited excessive teasing as a common reason for a friendship ending.
Frequently Asked Questions
- Why does laughter strengthen friendships?
- Shared laughter releases β-endorphins — the same neurotransmitters activated by physical touch. Humor also works as an icebreaker: it reduces self-consciousness and eases the transition to self-disclosure.
- Is humor important in friendships?
- Yes. Friendship conversations differ from acquaintance conversations through more joking, teasing, and informality (Planalp & Benson, 1992). The experienced amount of fun significantly predicts satisfaction with friendships for both genders.
- Does shared laughter release feel-good hormones?
- Yes. Shared laughter activates the endorphin system — similar to exercising or singing together. It is one of the most effective ways to strengthen biochemical bonding without physical contact.
- Can people without a sense of humor make friends?
- Yes. Humor is a catalyst, not a requirement. Other pathways — responsiveness, self-disclosure, shared activities — also lead to friendships. Humor accelerates the process, but it is not the only route.
Sources
- Fraley, B. & Aron, A. (2004). The effect of a shared humorous experience. Personal Relationships, 11, 61–78.
- Hays, R. B. (1984). The development and maintenance of friendship. Journal of Social and Personal Relationships, 1, 75–98.
- Fehr, B. (2008). Friendship Formation. In S. Sprecher et al. (Eds.), Handbook of Relationship Initiation. Psychology Press.
- Argyle, M. & Henderson, M. (1984). The rules of friendship. Journal of Social and Personal Relationships, 1, 211–237.