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When people describe how they perform activities such as tying their shoes, rotating gears, or balancing blocks, they frequently gesture (Pine, Lufkin, & Messer, 2004; Schwartz & Black, 1996). The information conveyed in these gestures often reflects the actions executed on the objects being described (Cook & Tanenhaus, 2009) and is not conveyed in accompanying speech (Goldin-Meadow, 2003; Stevanoni & Salmon, 2005). We investigated the cognitive consequences of these action gestures, not for listeners, but for the gesturers themselves. Research suggests that how people act influences how they think by grounding perception, affect, and even language com-prehension in the sensorimotor systems used to interact wit