I eat lefty, throw and play righty, and am, says my wife, geographically impaired. Maps don't represent places to me: they're just one more remove from figuring out where I am and which way to go. In the car, someone saying "left" might just as well be saying, "turn": I change the direction obligingly enough, but not reliably in any one way. In High School, when there were more passengers than riders in what cars we had, I recall people yelling, "Your door," or "my door".More useful.