Handle People Effectively To master the art of winning friends and influencing people, first learn and practice the three basic principles of dealing with people. Constantly remind yourself of the importance of these tenets. Review them, and consider how to apply them to your life. Employ them whenever you can, and even ask a friend, your partner or a business associate to remind you when you violate one of these precepts. As you practice, you should review your progress and keep notes showing when you have used each of these methods.