Shake Info

Popular on Android (especially Motorola "Moto Actions"), this allows you to toggle the flashlight on or off with two quick "chopping" motions.

Apps like WeChat and Line have used a "Shake" feature to help users find nearby people or add friends by shaking their phones simultaneously. 💻 Windows PCs 1. How do I enable/disable Shake? - WeChat Help Center

Shaking your phone while the app is open captures a screenshot and opens a feedback menu to report issues.