Answer: Differences.
Explanation: People tend to look at the differences of each person or social structure amongst different groups. For instance, Anti-Social and Social. The differences is that Socials are known to be stereotyped to be very good at talking, a social butterfly who always likes conversation. With Anti Social people, they are considered shy and scared to speak, which most of the time can be true and false. They are judgements people have on groups depending on how they look, talk, life style, dressage, and many more. At this point, these are all assumptions. We can simply even stereotype someone out of our feelings like jealousy or anger. Hope this answered the question!