Processes of
communication without the use of
language proper, e.g., body movements, gesture, smells but also such extra-linguistic features of speech as intonation, speed, pause. Non-verbal communication is expressive and manifest as opposed to being about something outside the communicator. Non-verbal communication tends to provide the
context of verbal communication and has the power to disambiguate (but also to invalidate) the content of linguistic expressions. (
Krippendorff)
