Your face is no exception. Your face reflects and responds to light.
The way it reflects light reveals a lot about you, and the way each facial feature reflects or responds to the light.
An example would be a person with very deep set eyes. Trying cupping your hands around the eyes as if you were protecting them from the light (the sun). Deep set eyes are a metaphor for protecting or guarding yourself as if backed into a cave. You may look relaxed, but you are constantly analyzing your outer world to protect your inner self.
Opposed to that, are eyes that protrude out (convex) or bulge out into the light (Susan Sarandon). You want to be included. You want to get involved, participate in everything, and you may feel left out if you’re not included.
Another example of response to light is very low heavy brow ridge. This feature of the forehead protects the brain. The forehead indicates your thought style. The brow ridge is like the bill of a cap, shading you from the light. You usually want to know the right way of doing things and like to follow set procedures and rules. You don’t use theoretical or philosophical approaches. You concrete plan of action.
Light does affect your face and its personality. Use it to your advantage and share your light and energy.