Being active in-game is a big part of being an Event/Support Game master if you know you are quite busy or don't have the time to be a Gm then you shouldn't apply as others can fulfill the positions instead and it would be rather rude knowing you can't be active in-game but you still apply for the position.
Other than that fill out your application truthfully, as lying will get you no where.
Good luck to all applying! [=