Look as visual contact

The contact of eyes is very important in the process of communication. As you know person gets about 80% of information through his/her eyes. It is possible to transmit the most different impressions and expressions with the help of eyes. Moreover it is possible to control the conversation with the help of eyes as well as to provide the ambivalent connection in the behaviour of people. Look helps in speech traffic because the majority of phrases would be senseless without eyes participation.
One of the most vivid examples of eyes importance can be smiley in the internet. Remember how people need them as they are the substitution of the eyes contact as well as facial expression. It is more complicated to transmit feelings without expression of face and eyes. And as practice shows these methods are widely used by the participants of internet as they demand the real communication.
Look also takes part in expression of intimacy and sincerity. It is possible to define the level of close relations with people.
In communication look usually plays the informative function. For example, the person who listens looks at the speaker and if that person made the pause, he/she waits for continuance silently without interrupting the visual contact. With the help of eye sign the speaker can say that the talk is over. It also helps to establish and to support social relations when we are looking for the glance of the person during communication.
In psychology there are several types of looks that have their significance.