Pragmatics are the rules that govern the use of language in various social situations (i.e., the social skills of language). Pragmatics includes: the ability to use language for a variety of reasons, including greetings and requesting; the ability to change language to meet the needs of the situation or listener (e.g., talking differently to different people, knowing how to use appropriate detail, etc.); and following conversational rules (e.g., appropriate turn-taking, topic maintenance, use of gestures and body language, etc.) These rules may vary depending upon cultural norms.