proxemics Proxemics the study of the nature, degree, and effect of the spatial separation individuals naturally maintain (as in various social and interpersonal situations) and of how this separation relates to environmental and cultural factors
pARALANGUAGE vocal features that accompany speech and contribute to communication but are not generally considered to be part of the language system, as vocal quality, loudness, and tempo : sometimes also including facial expressions and gestures.
kinesics Linguistics. a systematic study of nonverbal body gestures, as smiles, hand motions, or other movements, in their The study of the way in which facial expressions and body movements are used for the purposes of communication . This is also known as body language, as is proxemics relation to human communication; body language.
phonetics Phonetics is defined as the study of the sounds of human speech using the mouth, throat, nasal and sinus cavities, and lungs. the study of speech sounds, their production and combination, and their representation by written symbols the description and analysis of the sounds of a particular language