What are social norms?
There are two different but related kinds of norms. One type, behavioral norms (also known as descriptive norms), refers to the most common actions or behaviors actually exhibited in a social group. Thus, the behavioral norm is what most individuals of a social group actually do. The other type, attitudinal norms (also know as injunctive norms), refers to the most widely shared beliefs or expectations in a social group about how people in general or members of the group ought to behave in various circumstances.