Answer:
The 5 examples of the proper procedures in entering the guest room.
1.Check the room status
2.Check for a "Do not Disturb" sign. Do not knock if a sign is on the door.
3.Announce presence. Knock firmly. Do not use a key to knock on the door.
4. Wait for a response. If you don't hear the answer knock again and repeat.
5. Wait for a second to response
