Personally, I dance now because I enjoy doing so. But it's also helped tremendously in picking up women. So much on this forum is about going outside your comfort zone and learning something new for both inner and outer game. Why is learning to dance any different?
Simarly to how people get started with Game by watching naturals, go to a club that is not all white people. Especially in a place with good hip hop music, watch the people who look good dancing with girls on the floor.
It's an asshole who gets upset if someone knocks him on the dance floor. Even more of an asshole is the guy who gets upset after he brought a drink on to the floor.