When I interview people, and they give me an immediate answer, they're often not thinking. So I'm silent. I wait. Because they think they have to keep answering. And it's the second train of thought that's the better answer.
I auditioned for Robert Redford once and I was so starstruck I couldn't even speak. I had a mic wire at a screen test clipped to me and then I got kind of nervous and I paced in a circle and then took a step and tripped and fell on my face. You just have to forgive yourself and keep going on.