Use your best judgement and don't get to pushy. I for one always wait till I know for a FACT the other guy is cruising, Knocking on Truck Doors, Walking around the truck when a driver is sleeping is really bad news. This does not mean to not cruise truckers. Truckers are bothered so much by cruisers that even when they want to sleep its not always that easy. Especially if your cruising a trucker cause they are bothered all the time in rest stops, and Truck Stops. This is why you must have a head on your shoulders. I must say that cruising is always dangerous. There is no real way to cruise, Keep in mind to make sure you have a head on your shoulders.