I’ve been wondering about this a long time. I go to school in North Carolina, and I see a lot of African Americans in my school. They all seem to have a lot of rhythm and flow, even when they’re sitting down. I think it’s because they’re raised to be more open and expressive. Maybe that’s why most of them sing pretty well, too. Asians, on the other hand, are raised in a more repressive environment, so a good deal of us are horrible dancers.