We investigated the social interactions of college students varying in dependency and self-criticism. Forty-eight college students used a modified version of the Rochester Interaction Record to record quantitative and qualitative features of every 10-minute or longer interaction during a seven-day period. Daily measures of mood were also collected. Dependency was related to more frequent and more intimate interactions, and self-criticism was negatively related to pleasantness of social interactions. Although dependency and self-criticism were both associated with daily dysphoria, the social interaction findings could not be attributed to the effects of mood. The social environments associated with dependency and self-criticism may influence the aetiology and course of depressive episodes.