Put a snail on your forehead. REALLY, just peel it up off the ground and stick it there. Don't think about it, just do it and go walk around amongst normal people. Go to a restaurant. Go to class. Go on a blind date. If people ask about it, just shrug and say it's not important and change the subject.
I'm not going to lie; it feels really awful. I did this a year and a half ago and I can still feel the lovely thing slithering around on my forehead. But it was worth it for the shock value. Most importantly, children loved it! Good luck.