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A hitchhiker points his/ or her thumb up to signal drivers that they need a ride. It may be different hand gestures in different countries.
OverviewA hitchhiker is a wanderer, a tourist, or a person who needs a ride. In some countries, there are low trust and suspicions about hitchhikers and they get ignore by drivers who do not trust them.
People are force to hitchhike when they do not have transportation.