One of the models we can use to begin to understand human behavior is theJohari window. This 4 quadrant matrix suggests each of us is like a house with glass outside walls and solid inside/internal walls.
To understand a Johari window, draw a box, then divide it into 2 columns and 2 rows. Basically, the horizontal axis (wall) helps us identify behaviors that are public/external (left side) or private/internal (right side). The vertical axis (wall) contains our conscious behaviors (top) and unconscious behaviors (bottom)
In the upper left quadrant is the Public Self (public/conscious) that is visible to all. The upper right is the Private Self (private/conscious), those aspects of my personality that only I am aware of. The lower left is the Hidden Self (public/unconscious) which is visible to others, but not to me. And the lower right is the Unknown Self (private/unconscious), invisible to all.
We are able to see/understand our own behaviors looking in from the top side of the quadrant, which shows us both our Public and Private Selves - what we personally are consciously aware of. Other people look at us from the left side of the quadrant, seeing both the Public and the Hidden Selves - our observable behaviors. Obviously the Unknown Self, which is both private and unconscious, is simply not viewable, either by us or by others.
Johari Window rocks.