The Science of Talking to Strangers (2026 Evidence Review)

In Epley and Schroeder's experiments, participants told to connect with a stranger reported a more positive commute than those told to sit in solitude, while separate participants predicted solitude would be better (ScienceDaily; BPS Research Digest). Being spoken to was as positive as doing the speaking.

Sandstrom and Dunn found interactions with weak ties related to daily happiness and belonging, independently of close ties (University of Essex). In their tally-counter studies, weak ties accounted for about 60% of daily social interactions (Social and Personality Psychology Compass).

After get-to-know-you conversations, people underestimated how much partners liked them (PubMed). The gap appeared in short, medium and long conversations and persisted for months among college roommates (Psychology Today).

Across 12 experiments with more than 1,800 participants, people overestimated how awkward deep conversations with strangers would be and underestimated how connected they would feel (Silicon Canals; Chicago Booth Review).

Jeffrey Hall estimated about 50 hours together to move from acquaintance to casual friend, 90 hours to friend, and over 200 hours to close friend (University of Kansas).

The main barrier to talking to strangers is prediction error, not the experience itself. Tools that make starting easy (a Start button, interest tags, a one-tap exit) target exactly that barrier.

Most studies were in person, short and in Western countries. Anonymous online text chat has not been tested in identical designs. The evidence supports trying conversation; it does not prove any single platform improves well-being.

TalkWithStrangers.club Research (2026). The Science of Talking to Strangers: 2026 Evidence Review. talkwithstrangers.club/research/science-of-talking-to-strangers. Last reviewed 3 October 2026.

• Do the findings hold for anonymous online text chat?
• Does chat mode (text, voice, video) change the size of the liking gap?
• Do interest-matched strangers have longer, more positive conversations than random ones?

We will contribute aggregated platform data on these questions through our conversation report.

• "People predicted solitude would be more pleasant, but talking to strangers made commutes better." — Epley & Schroeder, 2014
• "After first conversations, people underestimate how much their partner liked them." — Boothby et al., 2018
• "Weak ties made up about 60% of daily social interactions." — Sandstrom & Dunn, via Moreton et al., 2023

Researchers: Nicholas Epley and Juliana Schroeder, University of Chicago Booth School of Business. Published in: Journal of Experimental Psychology: General. Design: nine experiments, beginning with commuters on trains and buses, then taxis and a laboratory waiting room (BPS Research Digest).

Participants were randomly assigned to connect with a stranger near them, to stay in solitude, or to commute as normal. Separate groups of participants were asked to predict how each condition would feel. The predictions and the experiences pointed in opposite directions: people expected solitude to be more pleasant, but those who talked reported the more positive experience (ScienceDaily). A later experiment addressed the possibility that only the person starting the conversation benefits; being spoken to was as positive as doing the talking (BPS Research Digest).

Why it matters: the barrier to conversation is a forecasting error. People avoid strangers because they misjudge how it will feel, not because it actually feels bad.

Researchers: Gillian Sandstrom and Elizabeth Dunn. Published in: Personality and Social Psychology Bulletin, volume 40, issue 7, pages 910–922 (University of Essex). Design: participants recorded their daily interactions with close ties (friends, family) and weak ties (acquaintances, familiar faces), some using hand-held tally counters.

Interactions with strong ties predicted happiness and belonging, as expected. Independently, so did interactions with weak ties. A later review of this research reports that weak ties accounted for about 60% of daily social interactions in the tally-counter studies (Social and Personality Psychology Compass).

Why it matters: wellbeing isn't only built in close relationships. Brief, friendly contact with people on the edge of your social world contributes too.

Researchers: Erica Boothby, Gus Cooney, Gillian Sandstrom and Margaret Clark. Published in: Psychological Science, volume 29, issue 11, pages 1742–1756 (PubMed). Design: several studies, including strangers paired for get-to-know-you conversations in a laboratory, adults at a personal development workshop, and first-year university roommates followed for most of an academic year (Psychology Today).

After their conversations, people consistently underestimated how much their partners liked them and enjoyed their company. Among roommates, the gap persisted for months (Psychology Today).

Why it matters: people leave conversations thinking they went worse than they did, which discourages them from following up and forming relationships.

Researchers: Michael Kardas, Amit Kumar and Nicholas Epley. Published in: Journal of Personality and Social Psychology. Design: 12 experiments with more than 1,800 participants comparing shallow and deep conversations, mostly between strangers (Silicon Canals).

People expected deep conversations to be more awkward and less enjoyable than they turned out to be, and underestimated how interested their partner would be in going deeper. The expectation error was larger for deep conversations than for shallow ones (Chicago Booth Review).

Why it matters: small talk is often a default chosen out of misplaced caution, not preference.

Researcher: Jeffrey Hall, University of Kansas. Published in: Journal of Social and Personal Relationships. Design: surveys of adults who had recently moved and of new university students, tracking time spent with new acquaintances (University of Kansas).

Hall estimated roughly 50 hours together to move from acquaintance to casual friend, 90 hours to friend, and more than 200 hours to close friend, with shared activities and everyday talk mattering more than time spent working together (University of Kansas).

Why it matters: first conversations open the door; repeated conversations build the friendship.