[zorrophreak]

What you'll need to do for sure is brush up on the skill. A lot of the stuff @mothered recommended will get you far, but nothing as far as actually practicing. Whether that is practicing on friends and acquaintances, or by calling up people to try to get some experience in, give it a shot. The worst that happens is you end up in jail. No big deal.

(As long as you don't do anything blatantly illegal you won't end up in jail. Even if you do as long as you're not stupid you won't end up in jail.)