Even if a key is required to get to her floor, you can usually meet an escort on an upper floor that you can get to.
Almost all the larger hotels will have a few floors above the lobby that are used for meetings, functions, etc. There is often a big stairway going up there, but I would bet that the elevators go there too, without a key. These floors also have bathrooms, so they are usually an uncrowded place to freshen up.
This is true of the Park Plaza, Sheraton Copley, Marriott Copley, Renaissance Waterfront, Le Meridien Cambridge (formerly Hotel at MIT), and Marriott Courtyard Downtown/Tremont. If you are in a new hotel and you see a big stairway, just head for it. You will soon be away from the watchful eye of the Desk staff.
Then you can call the escort and have her meet you on whatever floor you have landed, with her key. It's helpful to know which bank of elevators you are near, if the hotel has multiple towers, e.g. Sheraton Copley.
If possible, take a look at the Events board as you pass through the lobby, or when you reach the meeting room floor. Then, if you are questioned by staff, even with a friendly "Can I help you?" you can always say you are going to the "Pharma Luncheon", "Gartner Symposium" or some such. (This doesn't apply to police, of course. If you are questioned by police, it's best to say nothing, as others have advised.) If an Events board is not along your path, and you have balls, you can always say you are scouting for a good meeting place for your company's upcoming get-together, blah, blah. You can also say you are there for a private business meeting or job interview.
The point is to have a plan for where you are going to go, without attracting attention, and what you are going to say if you are questioned.
Stay safe,
filmat11
-- Modified on 2/22/2009 11:58:24 AM
i use the 2 key option all the time, esp. when I am in a bigger city. This way I meet at a nearby bar, away from my hotel, have a drink with her, then give her my extra key. she heads to my hotel room 2 minutes after I have left the bar - so o one sees us together.