Please don't wear skinny jeans if you don't have skinny genes.

It never seemed like that much of a mystery why shows I was acted in failed. When you're doing a show called Freaks And Geeks about young people in high school, and it's on Saturday nights at 8 and there's no promotion for it, it's not really hard to guess why no one's watching it. And when you're doing a college goofball comedy that premières three weeks after Sept. 11, it's not that hard to piece together why that's not the most important thing on the radar.

The scene with Danny [McBride] and the cake and all of that [in the Pineapple Express], most of that is improvised, I would say. But you would never know, to me anyway, and that's what is always amazing.

I didn't think I'd ever be an actor.

I was looking to do a comedy and found a group of guys that were really supportive of my interests in it, though it was a little outside of my wheel house. Strangely, I visited the set of Knocked Up and met Seth [Rogen] and Evan [Goldberg] and Judd[Apatow] and Shauna [Robertson].

I met Evan Goldberg at bar-mitzvah class. It was called tallis and tefillin.

I knew I just loved comedy, and I think it was my parents who initially brought up the notion of me trying to do stand-up. I think I actually tried writing jokes just at home, just kind of sitting around. But it seemed like a very real way to step into the world of comedy.