Ingratiation is a psychological technique in which an individual attempts to influence, manipulate or control another by becoming more attractive or likeable to their target. This term was coined by social psychologist Edward E. Jones. This outcome can be achieved by using several methods:
unofficial. Unofficial is the phrase commonly used to describe the Friday prior to St. Patrick's day at The University of Illinois. The holiday began when students realized St. Patrick's Day was falling on spring break and they would not be able to celebrate it.
Informal and unplanned (incidental) control : Informal social control, as the term implies, is used by people casually. Norms are enforced through the informal sanctions. These norms include folkways, customs, mores, values, conventions, fashions and public opinion, etc. Ritual and ceremony also act as instruments of informal control.