My objective is that I don't try to do the same thing. I try not to emulate something I've done before. And, I'm a real people watcher, so I like trying to play characters that are as diverse from each other as possible, simply because it's more fun for me, actually.
I think I'm drawn to characters with complexity or who are under duress in some way and have some conflict going on.
I always think that the most interesting characters are those that are trying to cover something or those that have some sense of bravado or composure.
If you're very open to watching the world go by, with people's different tics, you absorb it all without realizing it and find ways to put something into your character. I'm not sure I'm always aware I'm mimicking someone.
I think a shot can actually influence a scene in a huge way. For example, comedy is always better in a two-shot. What's between the characters is what's funny. So you learn about these things as you go along.
I love character roles. I'm happier in them. I look for roles that have some kind of complexity.