Why do you not like to stand in the hallways knocking for ten minutes?
Other people, employee workers and other guests, are known to walk down the hall.
For what it's worth.. Some years ago after I saw this question for the 50th time or so I paid attention to when I went over someone's house.. A lot of people stand behind the door when opening the door. Unless it's a door that pushes out.. It doesn't just happen with escorts in hotels.