Communication
We should first distinguish between specifically communicative signals and those which may be unintentionally informative signals. Someone listening to you may become informed about you through a number of signals thatyou have not intentionally sent.Shemaynotethatyouhaveacold(yousneezed),that you aren’t a tease(you shifted around in your seat), that you are disorganized (non-matching socks) and that you are from somewhere else.
Animals and human language
Properties of human language.
While we tend to think of communication as the primary function of human language, it is not a distinguishing feature. All creatures communicate in someway. However,we suspect that other creatures are not reflecting on the way they create their communicative messages or reviewing how they work.