Insert the two points of the bobby pin into the lock. Press the bobby pin forward into the lock— depending on the door, simple forward pressure can be enough to open the lock. Picker of Locks says to keep even pressure on the pin as you elevate each lock. Using a second pin that is straightened may help.
How do you unlock a door with a hole?
https://www.youtube.com/watch?v=xDTeypWLeXM
How can I open my door without a key?
https://www.youtube.com/watch?v=c8_glaHRLNM
How do you pick a lock with a bobby pin without breaking it?
Creating the Pick and Tension Lever. Open up a bobby pin and bend it at a 90-degree angle. Spread the wavy and straight ends of the bobby pin apart so that it bends at the center and looks like an L. This bobby pin will serve as the pick that you'll use to unlock the door.