Gestures

Usually we use thumb up to inform other drivers that we are hitchhiking. But in some cultures this gesture is highly offensive, so if you don't know it, you risk to be killed by furious driver you just insulted.
To prevent this kind of situation, here is Hitchhiking Gestures Guide.

This article is a stub. This means that the information available to us is obviously insufficient. In these places little information is available or the description is severely outdated. If you have been there, whether hitchhiking, for travel or as part of an organized tour − be sure to extend this article!