A door which takes you to BikebunnyNTheWailers Public room. Open it, walk through it and you're inside the other room. Don't forget to close the other room, if more than one uses it and you or they forget to close the room, where you used the door, you or they might get into a traffic jam.
For example:
From a private room (or a public room)
Going through the door
In the public room "Paranormal Chat"
Have fun!