Karen Read's supporters​ have been making silent hand gestures to her instead of cheering when she enters and exits court.

Without further ado, here are 12 common military hand signals you might have seen in the movies, and what they mean. Read more: 12 Hand Tools That Are Actually Worth Buying On Amazon.

Thanks to hate groups, the 'OK' hand gesture is not always okay to use anymore.

Hand Signals for Driving: Slowing/Stopping. Potentially the most important driving hand signal, an arm out of the window with the forearm pointed down and palm facing backward, signals that you're ...

For military number hand signals, things are simpler. The signaler starts with the index finger, counting to five with the first four fingers and ending with the thumb.