Today’s college instructors are expected not only to be engaging in their classes, but to engage students outside the classroom. Whether it’s supervising service-learning, taking students to professional conferences, leading study sessions in coffee houses, or inviting students into our homes, faculty are now expected to be with students in ways that change the kinds of relationships teachers and students have in the classroom. Teachers now interact with their students in a variety of contexts, many of them informal and some of them purely social. These new roles blur the line between being friendly toward students and being a friend of students. This matters whether you’ve been teaching for a while and no longer look like a student or whether your academic career is just starting. All faculty need to know how to build supportive and positive, but businesslike, relationships with students.