Humans couldn’t be social animals if fully conscious of everything words and actions communicated; there would be no secrets, and thoughts would provide no seclusion if we were totally aware of who we are. We would control all our communication.
And since we are monogamous we choose our mates with a purpose since we can’t be totally honest about ourselves, even though we rarely know who that is. Perhaps total self-awareness is impossible, but a well-matched mate provides a mirror to help decode your origin, if you care to know it.