The document discusses the psychological concepts behind social behaviors and how they can be leveraged online. There are three main elements of social behaviors: social proof, which is influencing actions based on what others do; social validation, which is the desire to belong to groups of like-minded individuals; and social norms, which is doing what others have previously done. Some principles that can be applied include scarcity, set completion, bandwagon effect, and reciprocity. However, social strategies should support business objectives rather than define them.