Get two hair pins. Straighten one out and stick in lock. You now rake along the pins on top from back to front. At the same time you use the second one to apply

Get two hair pins. Straighten one out and stick in lock. You now rake along the pins on top from back to front. At the same time you use the second one to apply rotational pressure on the tumbler so that after being flicked up the pins rest on the edge of the thingy inside, and you'll be able to turn it then. If the first rake doesn't do it try again. This is all there is to it. After a bit of practice you can walk up to a door and pick the lock as fast as anyone can insert and turn a key.