During most of the twentieth century, students sat quietly in classrooms and were asked to not talk to one another. This structure created a constant stress for the teacher, who tried to maintain enthusiasm and participation and still have students quietly face the front of the room and avoid their neighbors. Our recent understanding of the brain and the nature of social dynamics have changed our point of view. Socialization influences learners in many ways, some of which can be good: it alters our levels of stress, our confidence, and even our content knowledge. This chapter focuses on a particular ...