First for the obvious--you don't have to be black to do a good impersonation of a black dude. I like Darrell Hammond's Jesse Jackson a lot more than Keenan Thompson's Al Sharpton--but you do have to be good. Andrew nominated this cat (Iman Crosson) awhile back. I thought he was decent, but then I was over at Anovelista and saw this video. Awesome. Nichelle also nominates Aisha Tyler for Michelle Obama impersonator. I could go with that. No one will ever top Tina Fey's Palin--but this is still good.
You don't have to tell her how big she is. You don't need to touch her belly.