SMILE

people's need for intimacy and relationship increases as we grow old and thus the help of communication automatically takes place. smiling as a form of non-verbal communicator is so far, the basic ingredient for starting relationships--friendship. people who are motivated to seek warm, close relationships with others will have more such relationships. these relationships are likely to give social support and so buffer the effects of bad events, stress and problems. but then, smiling does not have a universal meaning, according to some references, smiling could be expressed as a form of happiness, gladness, concealment for a feeling and etc.