The 37-year-old actress and 'The Mindy Project' star Mindy Kaling were interviewing each other in a conference, where they both shared their likes and dislikes, reported E!Online.
"Few people know this about me, but I like to take hip-hop dance classes. I'm not saying I'm good at hip-hop dance classes, I just enjoy taking them. I liked taking dance classes when I was in high school and I was never any good at it," Witherspoon said.
"But they would bring three girls to the front and they'd say, 'Okay, watch Sarah for her arms. And watch Lily for her legs. And watch Reese for her personality'," she added.
To which a flattered Witherspoon replied, "She's really much smarter than I am.