I can't remember how or why I started looking at escorts, then I found pro$$ienet and read a few threads for recommendations for guys in the same situation. Booked the well-known Linzie Mae and the rest is history as they say.
If you are a virgin or just a punting virgin I'd say your first time with an WG will not be a trivial thing. You come across PN, AW, here whatever by doing research. You are investigating what is out there. Surely part of that research would be reading some of the existing threads, especially the ones that are still on page 1, regional boards and reviews, using the search function to help you maybe???
To come here, totally dismiss reading anything that is already here and ask about XYZ on your first thread is frankly disrespecting this site and the people who contribute to it.
Apart from that you said you read a thread on PN with girls for people in your situation. I bet being new to it the most important thing was a girl who would be sympathetic to your situation, wouldn't laugh, rip you off whatever. Big tits, nurses uniform, PSE, threesome - they can all come later, you just want to get nerves and noobishness out the way first right?