Human communication has three main bases: verbal language (oral or written), paralanguage (non-verbal languages) and kinesic language (body movements that communicate). Thus, communication can be done through various channels, mediums and codes, all three of which are often at play simultaneously.
Although it is hard to reach a consensus on the interpretation of body movements, non-verbal communication (NVC) as well as verbal communication require that the participants share a “common language”.
NVC is a kind of expression without words. It involves a series of signs —facial expressions, looks, body movements, distance or proximity, smells, non-linguistic sounds such as laughter, crying or yawning, and different types of gestures which are the subject of Guido Indij´s book “Sin palabras. Gestiario argentino —Speechless. A Dictionary of Argentine Gestures”. Buenos Aires, Colección Registro Gráfico, la marca editora, 2006 (page 14)
