Self-confidence is a construct which is going to be different and unique for each of us. Someone who appears to be full of self-confidence might be quite different in reality. We can build up simple and effective masks which delude even the most seasoned observer into a clear mask of calmness, assuredness and self-confidence. Like a serene duck on the surface, we may be paddling our legs at a hundred miles an hour below the surface. Perception is a reality.