The act of the father has now become his own.

So one by one the various attributes which he has found to be characteristic of the persons of his social circle, become his, in his own thought.

He is now _for himself_ an agent who has the marks of a Person or a Self.

He now understands _from_ _the inside_ all the various personal suggestions.

What he saw persons do is now no longer "projective"-- simply there, outside, in the environment; it has become what we call "subjective." The details are grouped and held together by the sense of agency working itself out in his imitative struggles.
This is what we mean by Self-consciousness.