Every project manager must work with different types of people--and that often involves difficult personalities. Furthermore, in times of stress and conflict, bad behavior can dominate. This article describes how to handle difficult people as well as ensure that as the project leader, you are not part of the problem. It identifies best practices when dealing with a difficult person and also explains upper-level behavior and lower-level behavior. In addition, it cites three simple behaviors to influence others and keep them on the upper level: giving recognition, showing respect and trust, and making others feel relevant. The article also includes six best practices when facing a difficult person.