I usually return the favour and stick my thumb up at them as i drive past !!

Think truckers are more likely to pick up a hitch-hiker esp if on a long haul gives them a bit of company on the way.

I gave a couple of lads a lift home from a nightclub once while i was waiting for my mate to come out, they asked if i was a cab (in a renault 5 turbo!!) and offered me 20 quid to take them 10 mins down the road, made them give me the cash first though !