Calling people 'sweetheart' makes most people enraged.

I moved to Chicago in the early 1990s and I studied improvisation there. I learned some rules that I try to apply still today: Listen. Say yes. Live in the moment. Make sure you play with people who have your back. Make big choices early and often. Don't start a scene where two people are talking about jumping out of a plane. Start the scene having already jumped. If you're scared, look into your partner's eyes — you will feel better.

There's power in looking silly and not caring that you do.

You can tell someone you love them first. You can try to speak only the truth for a whole week. You can jump out of an airplane or spend Christmas Day all by your lonesome. You can help people who need help and fight real bad guys. You can dance fast or take an improv class or do one of those Ironman things… Adventure and danger can be good for your heart and soul.

Great people do things before they're ready. They do things before they know they can do it. Doing what you're afraid of, getting out of your comfort zone, taking risks like that - that is what life is. You might be really good. You might find out something about yourself that's really special and if you're not good, who cares? You tried something. Now you know something about yourself.

Listen. Say yes. Live in the moment. Make sure you play with people who have your back. Make big choices early and often.

Whenever I read stories of people doing huge pranks on set, all I think is, 'These people have too much time on their hands.' Besides, I don't want to make some poor assistant clean up someone's trailer after I've filled it with, say, Cadbury eggs. See? I can't even think of a good prank.