In communication, information is transmitted from between and receiver. Both interpret the information they receive and control the information they give (see impression management). Much information in communication is implicit and not expressed in words. It is "embedded" in the situation, in which the communication takes place. ("Put that there!" may be a perfectly intelligible statement in a face-to-face meeting, though to an outsider it is competely indefinite.) In communication it is therefore important to make it clear at all times "what kind of situation" (what kind of context) one is in. If we say (first) "this is play", we can (afterwards) allow ourselves to do and say things that might otherwise be offensive (Bateson 1955). Such communication about the situation in which interaction takes place, is called metacommunication.