Currently, you do not. You just know how your face looks with your beauty mark on your right cheek in the mirror, as you are brushing your teeth. If you are looking at a photo with your beauty mark on your left cheek, you feel irritated. You know your voice as you hear it through your head while you are talking. But if you hear it played back on an answering machine, it seems awkward, foreign. That is how little you know of your own voice and face.