The word is used, often instead of "action", to emphasize that nearly everything we do is done in relation to other people - either directly, by entering into negotiation and conflict with them, or indirectly, by attempting to imagine how they will react to our initiatives. The greatest interaction theoretician is undoubtedly Erving Goffman, whose detailed micro-analyses demonstrate the intrinsic reflexivity of human interaction. (See also process and impression management.)