To help create a supportive learning environment for students, school psychologists must collaborate daily with parents, teachers, and other professionals. Effective communication is an indispensable tool for helping to ensure that all parties understand how they play an essential role in a student's development. The ability to communicate effectively becomes particularly critical when faced with an oppositional, unsupportive, or adversarial colleague. School psychologists have the knowledge and skills to apply relevant expertise to adult interactions, as they do with students, and can more often than not approach difficult relationships as behavior that requires changing. Trying to understand the underlying motivation of the other person's position and being open-minded about one's own can set the stage for an amicable resolution. In this article, the author offers tips on how to communicate effectively with all colleagues, even "difficult" ones. Reflecting on how one's own attitudes and communication style might be contributing to a difficult situation is the first step toward lowering barriers to improved understanding and collaboration.