The document discusses politeness and defines it as actions taken to counteract face-threatening acts. It summarizes Brown and Levinson's politeness theory, which is based on the concept of "face" or social identity. The theory outlines two types of face - negative and positive - and describes four politeness strategies - bald on-record, positive politeness, negative politeness, and off-record language. It also discusses Accommodation Theory and how convergence and divergence relate to social differences. Finally, it notes some gender differences in how politeness is expressed.