On yet another sunny winter day in southern California, Viola Davis is home, and happy to be here. She says she's a homebody: "Homebody, totally. I'm total introvert," she said. What does she like about being at home? "I like just being ," she said. "I just like to be regular. I don't want to put on makeup. I don't want to try to be anyone else, other than myself." But when she does leave home, she Davis a tendency to make magic. She can light up a red carpet, turn bad guys into superheroes,