Looking-glass self is a concept that emphasizes the self as the product of our social interactions.
Definition Two:
Looking-glass self is a social psychological concept stating that an individual's self-concept is derived from interactions with others: that is, from that individual’s perception of how others perceive him or her.
In sociology, looking-glass self is the part of a person's self image that is based on the reactions or judgments of other people, suggested by the American sociologists C.H. Cooley and G.H. Mead.