When motorcyclists come across while riding they usually greet each other with the two-finger peace gesture using their left hand. This means several things; for starters it’s their way of greeting the other ride or showing respect. They acknowledge their presence and communicate their love for riding. The peace sign with the two fingers pointing to the ground translates to keep the rubber side down. It’s the literal version of keeping the tires in contact with the road or in other words, ‘Ride Safe’.
However this gesture is used differently in countries. For example, there are countries that drive on the left-hand side of the road, so when a biker approaches from the opposite direction they’ll be on the right-hand side. They can’t greet each other with a wave because they will have to lift their hands off the throttle which is located on the right side of the handlebar. Not only is this inconvenient, it’s also dangerous. So their best way of acknowledging the passing rider is by nodding their heads. They could use the left hand out to do the gesture but the other motorcyclists won’t see it. Interestingly riders from these countries use their right hand to make the two-finger or tilted palm sign without leaving the throttle. It’s their way of appreciating or saying thank you to the people on the road.