It's just your conscience at you.....you think when you walk into the hotel lobby everybody will look at you and know what you're up to there.....well unless they're clairvoyant, they wont. Loose the guilt complex brother. Arrive well ahead of your appointment with a copy of the Irish Times under your arm, facing outwards, so everyone can see it. Be reasonably well attired. Make for the bar, have a drink, non-alcoholic (you dont want to impede you performance). Then wander around to look for the toilets/restaurant, but make sure you find the lifts/stairs in the process. Make the call to announce your arrival and to get the room number, then proceed nonchalantly to your destination as if you own the place. Look out for lifts which can only be accesses by card-key. In this case, the escort will have to come down to meet you (a quite corner of the bar is usually good for this).
Take that guilty look off your face and dont look at the security cameras......just ignore them. I trust that you've been in a hotel before?