Is about norms, i.e., what is normal or typical behavior for a social group. Norms regulate the behavior of groups and individuals. People pay attention to norms to gain social approval rather than be rejected. NSI is an emotional rather than a cognitive process. It is mostly likely to occur in situations with strangers or with people you know, where social approval is important. It may be more pronounced in stressful situations where people have a greater need for social support