You need to go through a bunch of the reviews for your town. Read them all for the last 6 months... You'll get the idea.
This ain't rocket science.
Be respectful, stay within their limits, be clean and don't smell (probably most important), know the going rate, tip what they're worth, and you'll be fine.
Your biggest advantage will be to know the establishment (by reading the reviews) before you go in. Then you will know who to ask for and what services she is likely to provide.
Good Luck!