You know those cell phone commercials where the guy keeps asking if the person on the other end of the line can hear him?  You ever have those days where you think others can't see you?  Where you feel invisible?  Shop clerks don't seem to notice you, deli counter people, waiters ditto, and co-workers [unless they want something from you, then you are tres, tres visible] same thing.  You wonder if instead of your raincoat you've donned your cloak of invisibility. But wait, that's still in the cleaner's.  I've determined it's not that we sometimes seem invisible to others, it's just that to each of us we are the star of the show; others may either have bit parts, walk-ons, cameos, or are simply silent extras or 'background'.  So, next time you feel you are less than visible, just find your key light and turn your better side to the camera.