I don't think that's a bad habit; I think sucking your thumb is an OK habit, ... Somebody's bad habit could be smoking, that's kind of a bad habit because it's harmful to you. But thumb-sucking really can't hurt you, except for your dental plan.

He's just looking for who he is. Through that, I think he ends up kind of finding that there is no answer. And that he has to learn through his own experiences that there is no one thing that is going to help him or going to fix him.

I got on a plane to audition for this part, ... I could relate to it really easily, which is good.