Stop - arm extended straight down, palm facing back

You Lead/Come - arm extended upward 45 degrees, palm forward pointing with index finger swinging arm from front to back

Follow Me - arm extended straight up from shoulder, palm forward

Speed Up - arm extended straight out, palm facing up

Single File - arm and index finger extended straight up

Slow Down - arm extended straight out, palm facing down.

Double File - arm with index and middle finger extended straight up

Turn Signal On - open and close hand with fingers and thumb extended

Fuel - arm out to side pointing to tank with finger extended

Hazard In Roadway - on the right point with foot, on the left point with left hand

Police - Tap on top of helmet with open palm down

Refreshment Stop - fingers closed, thumb to mouth

Pull Off - arm positioned as for right turn, forearm swing forwards shoulder