Reese Witherspoon: Baby Bump at Brentwood Country Club

Reese Witherspoon plays tennis at the Brentwood Country Club on Wednesday (May 23) in Brentwood, Calif.

The 36-year-old pregnant actress has been taking private lessons with some gal pals.

“Reese was in a good mood. She was laughing with her girlfriends. They were all on the same side of the court and had tennis balls served at them by a trainer. It just seemed like a casual and relaxing practice game,” an onlooker told People about her lesson last week.

Over the weekend, Reese kept fit by going on a hike with her dad, John, and her kids, Ava and Deacon.