This document discusses pragmatic development in children. Pragmatics refers to the social use of language. Children acquire language because it serves important functions for communication, interaction, and social relationships. These include instrumental, regulatory, interactional, personal, heuristic, imaginative, and representational functions. Early parent-child interactions like peek-a-boo games prepare children for conversation skills like turn-taking and response. As children develop, their language use becomes more appropriate to different social situations through mechanisms like speech convergence and accommodation.