(I)From infancy, we are exposed to wordless messages such as voice tone, gesture and stance. (II) We send signals through our choice of clothing, food and work. (III) We also read signals and cues, making evaluations and judgments as to a person's class, education and status long before a word is spoken. (IV) Sometimes the readings are accurate, sometimes not. (V) An early study of non-verbal communication was done in 1872.