Norms are the written and unwritten rules that specify how people should behave in particular kinds of situations. There are two categories of norms: folkways and mores. Folkways are customary ways of doing things that apply to everyday matters — appearance, ways of greeting others, eating, sleeping arrangements, and so forth. People follow folkways without giving much thought to the matter. Mores are norms that people consider pivotal to the well-being of the nation or the group. People who violate mores often provoke intense reactions or may be severely punished by society.