Turn the Bobby pin left or right. Start to turn the screwdriver slowly. If the Bobby pin starts to wiggle stop immediately. Adjust the bobby pin to the left or right and try again. If you turn the screwdriver and the Bobby pin doesn't wiggle then your doing it right. Keep turning screwdriver until the lock is horizontal. Pro tip: save your game before you attempt that way if you break it you can load your saved game and try again, risk free.