Social organisms, including humans, live collectively in interacting populations. This interaction is considered social whether they are aware of it or not, and whether the interaction is voluntary or involuntary or The definition of social is someone or something that enjoys being with others or has to do with people living or gathering in groups. An example of social is children laughing and playing together. An example of social is people forming a community health clinic. Social interactions include a large number of behaviors, so many that in sociology, interaction is usually divided into five categories. These are: exchange, competition, cooperation, conflict and coercion. Let's examine these five types with a bit more detail.