Abstract: Using survey data on second screening activities while watching eight types of television programs among 570 Twitter users, we identified four types of second screeners: Specifically, Second Screeners for Politics and News mainly second screens for political events and news; Second Screeners for Sporting Events and Commercials mostly second screens for sporting events and commercials; High Second Screeners second screens all eight types of television programming, with particularly high levels while watching scripted dramas, situation comedies, and live television programming; Low Second Screeners do not exhibit salient second screening behaviors. Matching survey data with a year’s worth of Twitter activities from survey respondents, this paper extends the previous research on second screening as purposive hybrid media practice by examining how fine-grained Twitter behaviors are associated with four types second screeners. We discuss the implications of how different types of television programs can better engage with different types of second screeners.