What are the connections between self-perception and external perception?

The self-perception describes how a person perceives himself, the perception of strangeness tells how other people perceive this Mewn.

The context is the social relationship between the individual and his environment.

One should be honest with oneself in self-perception and always take into account the perception of one's own appearance.

The less the incidental modes of perception come apart, the better one can cope with society.