'Funny People' is my favorite performance of myself to date. Even though it's a comedy and there are serious moments, I really felt like Leo felt like a real person. It didn't feel like I was playing myself. Whether it's a comedy or drama, I just try to make it as realistic as possible.

When I look at interviews from when I was that age, I come off different than how I am because I've matured - and I've matured, become a man in front of the public eye.

I play a lot of games on my iPhone. There is a game called Rat on a Scooter that I will promote as much as possible because it has brought me so much joy.

All this stuff is so mind-blowing to me that I get to do in my life. Throwing the first pitch out at the White Sox game on a random Wednesday? Like who am I? How did I get this life? I'm glad I'm not jaded, and little kids are the least jaded people in the entire world, so it's fun to be around people that still find wonder in how cool things are.

I mean, I find things that happened in real life to be the funniest - things that you observe instead of crazy abstract things, you know.

Writing is as big a part of my career as acting is, financially and time wise. So, yeah, I love it. That's all I wanted to do since I was young was be a writer. So that and acting are the two most important aspects of my career.

I love it, man; I'm 23 years old and I'm lucky enough to write movies as a job! I just feel really blessed and can't believe it's happening.