If it doesn't say it on her ad or website, ask the lady directly. If it does and she specifies references, don't press. You'll just kill your chances of seeing them later.
Also, check out P411. It can help to verify you, and providers list whether or not they're newbie friendly.
All my newbies must take me out to dinner for a meeting. Just saying. I am single and have nothing to lose on my day, I love meeting newbies in public, or if your a stripper and do this on the side, have newbies come in and get aquainted,at your club, lap dances n beer!!