Understanding Human Behavior. Human behavior is absolutely fascinating. Observing people and trying to predict what they will do next can provide a real learning experience.Human behavior is quite predictable in many instances. Personalities can be extremely complex but there are areas that can be understood with a high degree of accuracy.nderstanding Human Behavior. Human behavior is absolutely fascinating. Observing people and trying to predict what they will do next can provide a real learning experience. Human behavior is quite predictable in many instances.