I like there to be some foreplay before getting down to business.  That's why massage can be a great way to start, there's a period of getting to know one another, some building of anticipation -- and even some seduction.  But you see in many reviews of FS providers that the exchanges are often nothing like that, very wham, bam, thank you mam.  I'm not talking strictly GFE, but striptease or massage or lap dance or something other than "I put the money on the dresser and she undressed."  

What are some ways to communicate with a provider in advance, I assume they'd mentally prepare differently, without being explicit?  I've had body rubs that ended with me servicing myself that were hotter than any FS I've had -- because the provider was working on being erotic, not just sexual.  

It is especially difficult these days when many sites offer nothing more than a picture and a phone number.

so I don't think most gals will have a problem telling you yes or no that they do massage.

 
On the other hand, this is a category on a gal's profile, so if it says she does massage, that's a good indication that she will, and further, you can read her reviews to see if guys did, in fact, get a massage.