What type of advice would you give a guy coming to see you at work?
Also have you ever been arrested or gone nude in public?
Have you ever refused service to someone because you did not like what you saw?
Shower thoroughly. EVERYTHING. Scrubbing your crotch for 3.2 seconds is not good enough. Use mouthwash, and I don't mean just swish it around. Gargle in the back of your throat, rinse, repeat, several times if you are a cigarette smoker. My one consistent complaint is bad hygiene. I'm going to get crass but B/O, unwashed ass and moldy dick cheese is a surefire way to ensure you get a bad session and it's way more common than you think. We care way less about you being fat, ugly, awkward etc - if your hygiene is good, you're way ahead.
Don't come in with stubble - it hurts.
Be polite.
No means no.
Don't come in fucked up on substances. For those of us who are not totally numb, it makes us nervous.
Asking is always good, even if it's something you know we are supposed to do - it puts us at ease. I had one client who saw me weekly who always asked if he could massage me, if he could play with me, etc etc - of course the answers would be yes, but it made me so much more comfortable for him to take a moment and ask.
Always start as gently as possible, adding more pressure gradually.
Never go in dry, don't touch anything dry.
Don't do anything just because you think you're supposed to. It's very common for men to touch us thinking we require them to get us off - we don't. This is about you. And usually the men that do this go about it the wrong way (immediately pinching/twisting nipples, aggressively rubbing clitoris with no lubricant - these are painful things that will result in a bad session, a bad attitude, and in some cases, we will not see you again and you may even be blacklisted, depending on how rough you are).
I have been nude in public several times and have never been arrested for it.
I have never refused service based on appearance - my spa mandates a shower before the start of the session. If they are still nasty, I will make them take a second shower and that will eat into our session time. If they refuse, I will leave. The only times I have left the session is for hygiene, aggressive behavior, or inappropriate requests. I will try to come to an agreement before leaving but sometimes you just can't win. I have walked out on a session twice. I have had a client walk out on me twice.