Copacabana has two hot dance floors., one for salsa and one for merengue, both featuring a live band. If you're a newbie, take some lessons offered by professional dancers. If you prefer a more conventional club scene, go downstairs for the DJ's house & techno mix. And note the dress-code: no sneakers, no jeans, and guys need to wear collared shirts. This is pretty standard for nice clubs in the city.