I've done stripteases before, and the key to doing them is, to convince yourself that you are the absolute sexiest thing known to man, because if you question what you're doing while you're in the middle of doing it, you'll look awkward and fake and he'll be uncomfortable if he notices... Music is a key point too, it's one part dance, one part seduction and one part tease... Have fun with yourself, it's great!
Make faces or certain moves in front of the mirror. No joke, you'll probably feel stupid, but better to feel stupid in front of a mirror than when you're trying to make things go well with your SO.