When schools were all winch launched, visiting AEG cadets were kept occupied all day with ground handling the aircraft when not flying, whether it was hanging on to wingtips, hooking on cables,(making sure you used the correct hook on a Mk3!) waving signal bats/flashing aldis lamps or just pulling them back to the launch point. A camararderie quickly developed as you went through the day.
Nowadays at Vigilant schools, cadets just hang around doing whilst waiting to fly.