Robert Pattinson recently revealed to ShowBizSpy the reason he looks so nervous in interviews. He doesn't want to say something bad. I think Kristen also has the same issue. They know everything they say will be put under a microscope and analyzed so they are very cautious with their words.
“I guess I am quite shy and I also like to do things where I have a little time to think about what I’m saying first,” Rob said.
“I’m not very good at thinking before I open my mouth to speak. It has been known to get me in to trouble.”
