Body language that exist in all languages. Body language, on the other hand, does not have a grammar system and must be interpreted broadly, instead of having an absolute meaning corresponding with a certain movement, so it is not a language like sign language, and is simply termed as a "language" due to popular culture. In a community, there are agreed-upon interpretations of particular behavior. Interpretations may vary from country to country, or culture to culture. On this note, there is controversy on whether body language is universal. Body language, a subset of nonverbal communication, complements verbal communication in social interaction. In
Computer processing of body language by the man who came up with the term, John McCarthy, artificial intelligence is “the science and engineering of making intelligent machines”. In relation to computers and body language, research is being done with the use of mathematics in order to teach computers to interpret human movements, hand gestures and even facial expressions. This is different from the normal way people generally communicate with computers for example with the click of the mouse, keyboard, or any physical contact in general between the user and the computer. This type of research is being done by a group of European researchers and