Where possible, provide examples. Communication is a relatively recent field of study. Linear models of communication show how communication is an ongoing process. Interactional models of communication fail to show how how communicators are simultaneously speakers and listeners. Perception a passive process of receiving stimuli from around us.
Stereotypes are inaccurate generalizations about groups.
Symbols are neutral descriptions of phenomena. We follow communication rules even when we are not consciously aware of them. Symbols are ambiguous. It is therefore highly unlikely that two people completely understand how each other thinks and feels. All communication is aimed at reducing as much as possible the vagueness of symbols.