The best advice i can give..
is never give them room number untill there on your floor.
and tell them to discreetly ring,when they do ask them a question,they would only know if there..
eg what colurs is the carpet,how many vending machines is there?
because there is some pathetic guys who will pretend to be there and then you have given them a room number..
a guy did this to me yesterday and pretented to be there,if i hadnt used this system he would of had my room number!
its not just for that reason either,when you know there on floor you can be at door ready to open..
also tell the guys to open door as if there room AND DONT LET THEM KNOCK i think this looks obvious if cleaners are around..
since ive used these systems ive had hardly no problems.
but if you can see them in carpark aswell even better.
but never give room number till on floor,another reason before i started doing that is a guy once dropped me in it by acting suspicious so receptionist obviouly asked if he was ok?like you would.
and he said shakily" im meeting a girl in room 254!!idiot then walked out wtf
As for worrying about been found out..
well ive worked in around 60-70 different hotels and only 1 time did i get told to leave as it was a small family run hotel!!i didnt do research..
as long as you go busy hotels and follow these tips you will be fine.
im in a extremly quiet hotel at moment because there wasnt much choice,and ive still managed to see a hand ful of guys,its dead as a door nail..