Before you start watching the video below, I’d like to apologize for the poor quality of the video , it was made entirely for ” fun ” for those who own AC2 for both the PS3 and Xbox360 users.
Dancing in Assasins Creed 2 is very easy, and is best done during the carnival scene ( sequence 9 ) , where you get the carnival cape and the golden mask. So you need to go areas where a lot of people are dancing, find the prettiest girl in the group ( the blonde one ) and use the grab technique. Move to the center where most people are dancing. Then move around in circles lol , enjoy and have some fun. You can give some florins to the lady after dancing, heheh.
I wish there was an actual scene where you have to dance go around through different dance partners before you assassinate your target and complete the mission, that would be awesome =)