Use your forearm and biceps, but also turn your wrist so your hand is facing you and pull toward you and not to side, which is called the top roll, then there is the hook, in which you curl your wrist as hard as you can. Now, get your body over your arm. Keep your arm close to your body. To get the pin, push down with your arm and body. Have your hip close to the table and your foot that is parallel to your arm put forward. when your ready to finish off your opponent, rotate your body so that you can use your upper body to pin their arm down.
Keep flexing your arms and working the muscles and the wings will come
You use the muscle in your forearm (not sure what it's called), not your bicep.
wear your hat backwards
strength is important but so is technique