There are several ways to rig a worm. My favorite is texas rigging. google texas rig and you'll see. you may also use a carlina rig. you can drop shot or fish shaky head with the worm on a jig. Lots of options and just google for any rigging and you will fins lots. hope this helps. oh and love the pumpkin seed.
I use the exact same worms for bass fishing. Bass like em (Bass seem to like almost anything that moves). I agree with the Texas rig suggestion - it can be a little tricky but just try to get the worm on the hook as straight as possible so it looks kinda natural. Just make sure you have a bit of weight on your line and work it along the bottom - Bass will eat it right up. Here is a link that shows ya how to get it rigged up - good luck!