When looking into a mirror to see how others perceive you, is the reflection of yourself how you'd look to the other person a) the distance of yourself to the mirror or b) the distance of yourself to the mirror doubled (ie the distance + the reflection of the distance)?

This thread can also include more general discussions on mirrors. Why do some mirrors make you look hot, but others make you look abject? Do you have a story in which you caught something happening in a mirror? Which is your favourite mirror in a car? Which is your favourite song about mirrors, that isn't mirrors or man in the mirror? Do you read the Daily Mirror?