 Similarity could be as simple as noticing that they are all using the same textbooks or notes, or that they happen to be wearing the same t-shirts to organizations (i.e., fraternity, university group).Finally, their physical proximity to one another (i.e., moving to sit closer) would be the final characteristic to judge that you are witnessing individuals with entitativity (Forsyth, 2010).There are two proposed antecedents for the entitativity perception (Ip, Chiu, & Wan, 2006)