I just showed up and shot my first match about a year ago. One of the clubs offers a course but I didn't go to it because it was on a Sunday, the other club offers nothing like that.
About every other match someone new comes just to watch but they generally wish they would of shot the match after the fact. Even the first time they are not that complicated after you watch 7 guys shoot a stage before you do. Be safe and it doesn't really matter how bad you shoot the first time.
New gun, same ol' shot.