1) Eyebrows are out, shave them off.
2) If you have a mole, dab it with some red lipstick, a pimple or a sore is much more attractive.
3) Teeth are really in right now, show them off, get them as white as possible and buy something large to gnaw on. Salt Blocks work great for this, but put some tang powder on it first, otherwise the salt is overpowering.
This is obviously not a comprehensive list. If you can remember anything, remember these, and you might have a chance.