Don't be in a hurry. Do your research.
You can start with just trolling through the ads here (In the forum to start, but the banner ads are also worth looking at.). Then, use the search function to try to find any reviews on the lady that interests you. If no reviews, then as a newbie, I'd suggest looking at another girl. With more experience, you can take a chance on an unreviewed girl - once you learn to gauge which girls are more real than not. (Hint: tineye and Google image search are your friend)
Try also LL and BP. (I probably can't specifically name those sites, but surely you can figure that out.). With LL, filter based on area and ethnicity to narrow things down. Once you spot something, come back here and search for reviews. Search based on name and last 4 digits of phone number.
If they've got a website, go check it out and read everything your first time - it goes a long way to making yourself more comfortable.
Or - just go see Lady Via. Trust me - you won't regret it.
Feel free to PM.