Answer:
Proxemics.
Step-by-step explanation:
Proxemics is the branch of knowledge that includes the study of how humans use space in their non-verbal communication. This branch describes the use of space and how humans perceive space in their everyday dealings.
This study of human behavior focuses on how space becomes one main non-verbal communication aspect. This study of how humans use or navigate the space around them in communicating with others show how they behave. It also can relate to the concept of personal space which can vary from person to person, and from culture to culture, etc.