Quoted from ahdelarge:
A secondary question would be, how would you explain the rules of this game to a non-pinball person?
I would say you don't.........rules these days are so deep and complex that I find even as a keen pinball enthusiast I struggle to take them in without heaps of gameplay.
I went to a comp recently and there were quite a few new titles including JJP and Sterns, while I was playing practice games people tried to explain the rules to me but I found I could really only take in some of the basics, there is just too much to learn.
I could not imagine how difficult that would be for a non-pinball player, so I would suggest that you explain the concept that there are rules and why, then briefly explain a few things that are happening as they play and why.
But yeah keep it brief, they won't be able to or want to have too much depth to remember, better to focus on basic play technique such as don't press both flipper buttons at once