If you want to dance in Manhattan without being surrounded by teenagers, Et Al. is a lounge on the LES that should work well for you. Every Thursday night they have disco parties that are worth the high probability of feeling unpleasant at work the next morning. They play great music that ranges from disco to classic rock and pop, and there are also life-size pink teddy bears placed around the place, in case you can’t find someone to dance with. On weekends, the door here can be unpredictable, so come early or have a backup plan.