Computing devices (e.g., a smartphone, a smart watch, smartglasses, smart headphones, a laptop computer, a tablet computer, a vehicle head unit, etc.) may use a specific movement, such as a tilting of the computing device to trigger an action. For example, tilting a wearable device (e.g., a smart watch) may trigger a display of the wearable device to turn on (tilt-to-wake), brighten (tilt-to-bright), or perform a particular action (tilt-to-act). For example, the computing device may use one or more sensors (e.g., accelerometers, gyroscopes, barometers, or other motion or non-motion sensors) to determine whether a user of the computing device has performed a gesture while wearing or holding the computing device. The computing device may incorporate a camera, or any other sensor with the capability of identifying whether a user is present to detect false positives and prevent the computing device from unnecessarily performing an associated action when a user of the computing device is not present. A computing device may initially determine one or more gestures or events of a user wearing or holding the computing device, such as a user lifting and rotating a wrist with a smart watch or other wearable computing device. In response to the computing device determining that a gesture or event has occurred, the computing device may capture an image using a camera of the computing device and determine whether the image includes a face (e.g., of the user) and, if the image includes a face, the computing device may perform the action.

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