I am a first timer to be. Picked out a couple girls after I read there reviews. What i don't get is how does the girl know what you want and how cost for services are arranged.

You can read and/or search the Newbie board to find those answers, and I also suggest that you check out the link below:

read the reviews; avoid those who "upsell" - that means the donation indiacted on their website (and the TER profile listed donation may be out of date, so go by the website);
then just go by the flow - usually you just leave the donation on a table - most highly rated providers will do what they do (and may lay out rules before hand if they have limits); its seldom necessary (or desirable to discuss); remember, your just visiting and paying for companionship - anything else that may occur is purely voluntary (that said, if you go with a provider with many ratings of 8 or above, you will be satisfied).  After a while, you'll learn which providers do what you like, take notice of other reviewers who also liked them and search for others that those reviewers also rated highly.  After a while, you'll identify 5-10 local reviewers who seem to share the same likes/dislikes - then look for providers they rate highly. (of course to pull your weight, from time to time you have to try someone with few reviews and TOFTT (take one for the team) so that others can benefit from your experiences.

I choose to exchange a few emails with a gentleman once he has expressed a desire to set up a meeting. This way we get to know a little about each other and establish some type of comfort level. Once we both feel confident that it is a mutual desire, I then have the confidence to arrange a meeting.

In regards to the cost of services, most established providers, that I know, do not discuss donations as most have a set agreed upon amount that is posted on her web site.
A few pointers…. Never start speaking about details and sexual acts until the provider has made it clear she is comfortable with you. (*Many hobbyists do not understand that this type of behavior is risky to both the provider as well as the hobbyist as discussions of this nature could easily be misunderstood to be soliciting*)

Another pointer is...… Do not agree to meet with a provider until you are comfortable and confident with the expectations and feel the provider is as well.

Happy hobbying
Know your provider (*and her reputation*)  Kisses ~Tori

Once you identify those 5-10 reviewers that you mention, drop a few of them PMs.  That's where there's real mileage.  You can get beyond the review to a more detailed story.  For example, there's someone that's active in my community that has different tastes, but he's still a great resource, and another guy that doesn't see many at all, but our taste is 99% similar.  Together, they make for excellent feedback.

Everytime I read one of your posts, I am always amazed by your wisdom and common sense. I would love to actually have a provider take time to exchange a few brief emails, prior to our meeting, so that it raised both our comfort levels. In many years in this hobby, I have NEVER had a lady exchange more that brief details about the meeting. I wish that you would visit Tampa sometime!