When you're acting, everything is there around you, you just have to believe that it's real. When you're standing there with a slightly grey wig on and you have a baby in your arms screaming in your ear, you can go: "Well, I guess this is what it's like!"
When I was younger, I looked to actors like they were from another planet. You couldn't believe you could be anywhere near that world. It was exciting. I kind of like that.