Apparatuses, methods, and program products are disclosed for performing an action in response to a movement. One apparatus includes a sensor, a processor, and a memory that stores code executable by the processor. The code is executable by the processor to detect, by use of the sensor, movement of one or more facial parts of a user. The sensor is positioned in an ear canal of the user. The code is executable by the processor to perform a predetermined action in response to detecting the movement of the one or more facial parts.