Halfy / Mark. All I would advise is to read through quite a number of posts on this forum to learn the various traps that people can fall for when it comes to the advertising for online services such as Adultwork (Private gallery scams, Fake profiles, Bait and switch etc).
One of the first good things is to check the authenticity of some of the profile photos, by vetting them with Google Image Search (turn Safe Search off) and TinEye.com.
Both of those are not 100% guarantees that photos are genuine (if somebody scans photos from a magazine for example), but can at least help show up blatant photos that have been grabbed from porn gallerys and escort sites with completely different names and nationalities.
Other things include reading through the text on the profile and looking for things that simply don't add up about the deal (sometimes blatant mistakes about nationality or location can give the game away) or don't sound quite right.
Keep an eye on profiles for a week or so and check out how long ago the profile was created VS any feedback (don't forget to click the feedback tab on a profile, even if it it says 0 feedback as bookings that led to nothing mean the booker can leave a basic feedback, and it can sometimes expose a time waster). Some of these profiles have been around for quite a while, yet have no feedback, and will move their location to an entirely different area of the country every week or so.
If meeting up, keep security / privacy in mind. Parking the car far away and walking in, is something that myself and others do .
An escort can claim whatever they like on a profile, but sometimes it can be different on the day/evening when you meet them as they may not control the profile or even be aware of it. If you see 'all' likes listed on a profile, that is usually a sign for concern about what they 'really' offer, as if they do everything on the Adultwork list then that person is more than open minded to say the least. Most of the genuine girls on there tend to be selective about they will and won't do, and make it known in the profile.
Confirm once and even twice in some form of writing (email/text) about services offered and if there are any further costs (for example, some won't do oral without a condom, or charge extra for it on top of the basic 30/60 minute rate).
I'm sure there is a lot more others can put in here, but those are some to work with.