This study develops the most efficient predictor sets for the leisure activities of 363 tenth grade teenagers from four high schools in Santa Clara County, California. The results indicate that media play a relatively small part in teenage lives. Interpersonal discussion is a major component of almost all teenage leisure behavior. Different cognitive styles predict different behavior: intelligence correlates highly with print consumption while creativity is strongly associated with non-media pursuits (e.g., clubs and hobbies). Socio-economic variables are less powerful in prediction equations than the interrelationship of all measured leisure time activities. As much as 40 percent of the variance is explained in a leisure activity, but refinement of communication measures, validation of predictive relationshpis, and longitudinal extension of the study design are recommended.