Ask the provider which way to turn to get to the elevators so you don't look lost. It makes me feel better if I carry a newspaper or a shopping bag. Put a cell phone to your ear so you don't have to greet anybody or make eye contact because you're too "preoccupied" (I haven't done this yet).

Don't knock on a hotel door then stand there looking nervous waiting to be let in. At least not when staff is around. I did do this! Then no answer, I went back to my car to call again and had to return in front of the same staff. Stupid but I learned!