How to take out my iPhone 5 Sim card tray without the tool?

Some say you can use a paper clip but nothing happens for me when I push it in. I have Verizon so I don't need to take it out but I'm just curious.

Use a paper clip. It does work. Just bend it so a stick of the paper clip is out in a straight line. Stick that into the SIM card drive, and it'll come out on the paper clip like a flag.