Knowing the way to open a locked door is not just for MacGyver; you never know when this trick will are available handy (like now!). There are a few easy ways to try to to this (depending on your door and lock configuration):
Try a card. Some door locks will pop open if you slide a mastercard into the crack within the door, near the lock.
Use a knife. Borrow a knife from your neighbor and put the knife between the door and striker plate, then slide the knife until you discover the bolt. From there, you’ll plan to push the knife bolt faraway from the doorjamb.