So, here's what you do.
1. You make an appointment
2. Show up on time shower fresh and ready to go
3. When you go in the room, undress to nothing - be completely naked
4. Lay on the table face down, make sure your dick and balls are hanging down and completely visible between your slightly spread legs.
5. Do not cover up.
The rest will be up to her.
1. If she simply covers you up, then you have less than 20% chance of something happening.
2. If she pats you on the butt and says something fun like "naughty boy" or something similar, then you've got a 50/50 chance more will happen.
3. If she does not cover you up, you have a 95% chance of something happening.
With options 2 & 3, you now have permission to rub her legs when she gets close to you. If she moves away or pushes your hand away, then enjoy your legit massage, even if you are totally naked. If she doesn't push your hands away and lets you rub on her and explore, then you can move on to L1 - L3, all depending on how much game (or cash) you have.
go have fun and report back.