Dillon makes a great point, one of the running jokes is hurry up and wait, it's what a stagehand does. We rush, rush,rush then wait.There's a fine line to walk between "looking to help" and becoming "that guy." You do not want to be "that guy." It is a fine art (that many veteran stagehands have mastered) to be available to help with whatever the next project is but not be in the way of what the road guy is doing at the moment. There will invariably be times during an Out (same goes for the In) where there is a little bit of standing around and waiting. Read the situation and be ready to work, but don't asking for a new job every 5 minutes.
Just do what the show guy says, ask if you don't understand and let him know if you are leaving the area.