"I'm waiting for Dax Shepard to come out, and that it's an episode of Punk'd," Cooper says of being named PEOPLE's Sexiest Man Alive of 2011. But what really earned the modest 36-year-old actor this year's honor? A combination of box office appeal (who hasn't seen The Hangover movies?), undeniable good looks and the lengths he'll go to for romance. Asked the sexiest thing he's done to woo a woman, Cooper tells PEOPLE, "Getting on a plane to go get them."