Serena Williams may be newly returned to the throne of the WTA rankings, and the holder of a record-breaking 23 Grand Slam titles, but she’s not great at everything.

She and her friends took part in the popular phone game, Heads Up (try it next time with your friends, you’ll love it). The 35-year-old acts out tuning a guitar, frosting a cake, hitchhiking, taking a photo, hanging a picture, stubbing your toe, braiding hair, blowing bubbles, miming and pogo stick.

The reigning Australian Open champion was actively involved, though she seemed most stumped at “frosting a cake.” It's important to note, whoever was doing the guessing is really, really good.