I argue that while research on collective emotions is gaining in popularity, there has not been sufficient attention paid to understanding the mechanisms that explain how and why group emotions influence group outcomes. The goal of this chapter is to fill this gap by introducing group-member interactions as a group-level mechanism. I explore how positive and negative collective emotions in workgroups link to different types of member interactions, which in turn, influence group outcomes. Finally, I discuss the theoretical contributions of the research and the implications for future research on workgroup emotions and member interactions.