Reese Witherspoon: How to Get My Body

How does Reese Witherspoon stay slim after having two children?

"I try to exercise every day," she tells the February 2010 issue of InStyle UK while munching on an egg-white scramble and biscuits. (She is mom to Ava, 10, and Deacon, 6, with ex husband Ryan Phillippe.)

"I like to run for about an hour and I'm big into working out with girlfriends," continues the actress, 33, who split from Jake Gyllenhaal last month. "It's an acquired skill, being able to discuss your love life, children and friends -- all while you're running! But we have mastered it."

Check out photos of stars working out

Witherspoon doesn't just jog with her pals.

"There are three of us who wear pretty much the same size, so we'll get together on a Friday night and I'll bring clothes I want to trade and they'll bring theirs," says the Oscar winner, who commands $20 million per movie.

"We swap shoes and handbags a lot," she goes on. "I wore my girlfriend's dress to a wedding recently. It's fun."