Pragmatics is the study of language in use in its relation with the structure of the language and the context of enunciation. It is an interdisciplinary subject involving philosophy, linguistics, psychology, communication, sociology, etc. This unit is intended to allow students to think about the everyday use of language in interaction situations. A key concept is the understanding of communication while an intentional human Act, a founding notion of much of the work more relevant in PR/SC. Outlines also other objective; the reflection on the different modes of communication: serious and literal, not literal, indirect and on many implicit forms of communication. Within the theoretical field than in general is known as pragmatics, communication encompasses a whole package today for analysis methodologies of interaction situations. Care must be taken to give special attention to issues concerning the discourse analysis and conversational analysis.