Bend back the pin so that you have a long piece of metal wire. This will be your pick, and is inserted into the lock and used to move the pins out of the way. Strip off the rubber knobs on the ends, as they will only get in the way. You can do this with your teeth, or a pair of wire cutters if you have them.

How would you rephrase that briefly using Vietnamese?
Duỗi thẳng một cây ghim kẹp tóc.