We subconsciously learn how others behave in different situations by observing what they do. You can also purposely observe and study the behavior of people, animals and plants. From repeated observations, you can try to make some generalizations to find out the exactly what happens and why.ummary. You can observe the behavior of yourself, other people, animals and plants and then determine rules and explanations for that behavior. By recalling the circumstances, you can establish a behavioral rule.