shark fishing help

A friend is taking me and one other person out shark fishing (with his crew) in a couple of weeks. Prob 5 people on the boat heading out of jones. I have never been shark fishing but have been on a charter offshore before (in costa rica for sailfish).

what do I need to know so I wont look like a complete newbie?

I appreciate any help so I don't mess up the other guys day offshore.

Thanks

P.S. i own a 19' c/c so I understand about the cost of bait, gas, etc.

This post edited by anony 12:16 AM 06/28/2008