Because I've spent so much damn time with it. Warning, gross:

• There’s a notch on the left side of my nose, up near to the brow. I can feel it if I run my fingernail along it. It’s two fleshy-ish areas with a little gap between. Sort of indistinct, but definitely there.
• One of my front teeth is higher up than the other.
• A single dark hair grows out of the mole on my right cheek.
• There’s a small bump on the bridge of my nose, right in the middle. I think it’s a really old pimple or dead skin or something.
• There’s a patch of dry skin above my right eye.
• There is one thick black hair that grows underneath my left eyebrow that I pluck all the time.
• My eyebrows don’t match. The left one has more tufty stuff at its inside end.
• There’s a small mole on the edge of my right ear.