If your asking what all the acronyms mean you can use urban dictionary to find most.
http://www.urbandictionary.com/
Many things have varied meanings to different people, example is GFE. Some will say CBJ has no place in GFE. While I don't like CBJ's to me a GFE is more someone who I can see that will take there time and make things as comfortable as possible, and not someone that's like a robot, or a dead fish lay,or a wham bam type of girl. PSE has many various interpretations.
If you can read some reviews than you will get a better idea whats going on and what your ready to offer. Just remember you can expand what your willing and ready to do a little at a time till your more comfortable with things