Both parties have to have it, in this industry. SPs and clients.
As an SP:
~ If called by a clients SO, no matter what she says... ALWAYS tell her you can't help her, she has the wrong number, you have no clue who she's talking about.. whatever you have to say. You NEVER carry on the conversation, even if she knows exactly who you are, and has proof you have seen her SO.
~ Don't acknowledge clients when out in public
~ Don't return texts/voice messages if you are late to get them
~ Not dressing too provocative around your incall (in the lobby, or heading out of the building), or when heading to an outcall or dinner date.
As a client:
~ Do not acknowledge an escort out in public
~ Do not mention identifying details about her incall, or the location (even mentioning cross streets is bad) in reviews
~ Repeating building info/escorts name around the vicinity of her incall is a no-no
~ Calling her from inside her building, because you forgot her suite number is a bad idea... best to leave the building, and call from outside to get it again. Be aware that some ladies do not like to text the building info, so be prepared to write it down.. so that you are sure, and do not accidently knock on the wrong door.
~ Loudly knocking can draw too much attention from neighbours
~ Wait to verbally greet an escort, until you are inside her incall and the door is closed. Again.. voices outside draw unwanted attention from neighbours. Also, being silent as you are leaving.
Feel free to add.