The document discusses the various categories of non-verbal communication, including proxemics, kinesics, chronemics, paralingual, and artifacts. Kinesics is broken down further into facial expressions, gestures, body movements, posture, eye contact, and tactile. The categories are defined and examples are provided of each type of non-verbal communication. In conclusion, the document provides an overview of the different ways people communicate non-verbally through space, body language, time, voice, and objects.