 Hitchhiking is done by pointing to the ground with the hand far from the body, instead of raising a thumb.Hitchhiking in Israel is occasionally done with a printed sign to designate an obscure location differing from that of all the other hitchhikers at a particular trempiada.As a safety precaution the driver should be saying where he/she is going instead of the 'trempist' saying where he/she needs to get.