The biker wave is done by extending two fingers low and to the side. It likely started as a friendly gesture between William ...

The hand signal for a change to double file will see the leader extend their left arm up at the elbow with their hand facing forward -- very similar to both "Follow Me" and "Single File" signals.

Motorcycle rider-focused organizations like Harley-Davidson Insurance and The Twisted Road Blog add nuances to basic hand signals and recommend more signals that allow riders to relay important ...