One arm is raised, but the other is outside the vehicle.The adult is standing, but one of his arms is definitely raised in the air above his head and not off the side of the ride vehicle. You may not get in trouble for doing it, but raising your hands in the air over your head is NOT keeping your hands inside the ride vehicle, which is the rule. Last time we went, they wouldn't let BTM or SM leave the loading zone until people put their hands down.