Answer:
According to Mead, three activities develop the self: language, play, and games. Language develops self by allowing individuals to respond to each other through symbols, gestures, words, and sounds. ... Play develops one's self-consciousness through role-playing.
Explanation:
This is because the most prominent theories about child development emphasise different aspects of socialisation.
Development of self:
Freud's theory (psychoanalysis):
Cooley's theory of the 'looking-glass self:
Theory of G.H. Mead (I and me):
Durkheim's theory of collective representation: