Metal thumb up.

If you happen to drive through Canada you might be lucky enough to meet the HitchBOT. It is probably one of the few hitchhikers almost everyone would pick up as the robot is trying to get from Halifax to Victoria, relying on the kindness of strangers and their car’s cigarette lighter. It is programmed to make conversation too so chances of abduction are somewhat high.
globalnews.ca, vimeo.com (video)