That bothers me as well. I usually ask where the elevator is located before I arrive, and then walk through the lobby like I belong there. That usually elevates the stress.

Like other posters suggested, ask the provider or the agency. I know some them who tell me without asking.

Otherwise, I would pretend I'm talking on the cell phone and being absent minded. If you are really afraid, cover your face with a newspaper when you walk past the front desk.

You could stick exclusively to providers who work in motels. No one thinks twice about people at motels wandering around like they're lost.