Normally I'd stay at conrad, Hilton or pullman. I'd just openly strut in with the guy in tow. I would also watch the timing so it's not so obvious. And if I do get stopped, will just have the guy registered and say yeah we are having some drinks in my room after dinner. Just feed a story and don't bother what they will think since they would already be thinking of all sorts of strange things...bringing back more than one guy, I've not tried. Prob our more experienced members can share their experiences.