Do you have a cool external demeanor? Have people accused you of being arrogant or unfeeling when you're simply more quiet than they are? Then you may be in Reserve Mode.
People in Reserve are just naturally more contained. They have all of the same thoughts and feelings that others do, but not as much drive to externally express them. The also have the ability to be very, very precise in their thoughts and actions. Diamond cutters, ballet dancers, spelling bee winners and crossword puzzle masters are often in Reserve. So the next time someone accuses your of being standoffish, let them know that you are actually refined and precise. Their mouths will drop open as they realize that you're right!