I wouldn't wear turtlenecks. That I'm not envious of. But who knows? I might sneak out a few things and hope and pray that no one says, 'Hey, didn't you wear that when you were playing an enormous geek on TV?'

There's also these moments when you're like, oh, I really want to do different things. Not instead of this show [The Big Bang Theory]. It's just a hunger to do something else, too.

When you have this long of a run [in The Big Bang Theory], you don't have to have something happen every episode. Like, Sheldon lost his virginity last season and in the first season he didn't even like girls. So I feel like you can earn that stuff. And that is really fun, because you get to find new layers. It's a testament to the writing.

Generally people are nice, but it's so weird that it has made me more cautious. Just like anyone else, I like looking around at my environment, but now as I walk down the street I tend to look down.

I always honestly dreamed of coming to Second City in Chicago, although I've never even been there to see a show. But I did a ton of sketch comedy at the Second City in LA, which (at the time, in a different location) wasn't really a theater, it was just a space where you took some classes.

It's not really about confidence. It's just something that isn't really in the vocabulary of what goes on at work. The writers write and the actors act.

I was young. I was 23 or 24. I just wasn't a fan of the politics of campaigning - of going into that environment and competing and trying to get into the good graces of the writers.