Pragmatic language refers to the social language skills that are used in our daily interactions with others. This includes what we say, how we say it, our non-verbal communication (eye contact, facial expressions, body language), and how appropriate our interactions are.
Social language is used for greeting, informing, demanding, promising, and requesting.
Social language should be changed for the given situation and listener. For example, a person should talk differently to a baby versus an adult. A person may talk differently at a party with friends versus at a job interview.
Social language has rules such as taking turns and staying on topic. It also includes the appropriate use of body language, gestures, facial expressions, and eye contact when talking to another person.