Cameron Diaz pokes fun at herself to make people like her.

The Hollywood actress - who has just finished filming new movie 'Knight and Day' with Tom Cruise - thinks the way to get people to relax around her is by making herself look stupid.

She said: "I love to make people laugh. That's why I've always made myself comfortable around other people and how I make people feel comfortable about me. Because the truth is I am famous, and some people are intimidated by that. I make fun of myself first. I don't want to say I dumb down, because I don't think I'm an idiot - it's about keeping it simple."

The 37-year-old beauty - whose ex-boyfriends include, Justin Timberlake, Jared Leto and Matt Dillon -also admits she has pulled the plug on wild nights out now she has grown older.

She said: "I don't need to go out and party anymore. I don't like waking up feeling gross. I don't like to lose my day."