If you gesture while describing an event, do you think you'll be able to recall that event better than if you don't gesture? We had adults watch videos of toy objects, animals, and people performing various, sometimes odd, actions: a chicken sliding to a policeman, a jogger bending down to touch his toes, a fence swinging shut on its own. We then tested the adults' memories of these events immediately after the descriptions and three weeks later. Adults who were told to gesture while describing the events remembered more than adults who were told not to gesture, particularly several weeks later. To see if we'd get the same effects if people gestured on their own, we did the study again, but this time we gave the adults no instructions about gesture. We found the same patterns: people remembered items on which they had gestured spontaneously better than items on which they had not gestured. Producing gesture along with speech makes the information encoded in that speech memorable.