Children (N=64) in a fourth-grade class were given 20 tokens for drawing a picture and then had the option of donating any or all of the tokens to either "needy children" or for "a class prize." Sharing with needy children was positively correlated with self-esteem. (Author)

Independent groups of seven-year-old subjects listened to humor on headphones, either with a nonlistening companion (audience) or with a companion who also listened (coactor). In coaction sessions, children sitting closer engaged in more eye contact, laughter, and smiling. (Author)