Nick Epley was commuting to work at the University of Chicago when he looked across the train and wondered: Why are all these people sitting elbow to elbow ignoring each other? Epley, a professor of ...

You may generally disregard unfamiliar faces as background characters in the movie that is your life, but almost everyone you care about was once a stranger. Aside from the people who have been in ...

Humans have yet to master the delicate art of chitchat. Conversations seem to often run longer or shorter than people would like. People rarely want the exact same things from their conversations.