The main idea for this research is based on the assumptions of social interactionism. Adolescents representations of how they parents and friends see them are examined on the sample of 499 adolescents (12/13 i 16/17 years). In the structure of these representations EFA extracted five (for parents) and four dimensions (for friends): 1. prosociality, 2. sociability, 3. character and ambitiosness, 4. bed temper, and 5. maturity. First four dimensions have the same meaning in the booth structures, and they are equivalent to the dimensions of adolescents self-concept. Structures of these representations do not change between two examined ages. Canonical correlation showed that adolescents representations of how significant others see them, have influence on their self-concept, and that during the period of middle adolescence, information from peers are more significant.