Knocking etiquette

You should knock three times with the middle knuckle of your index finger first. If no one answers, wait a moment and then knock three times. Remember not to knock continuously. You can't slap the door with your palm.

Opening etiquette

1 If the door opens inward, you should push the door and go in first, and then ask the leader or customer to go in again.

2 If the door opens outward, you should open the door first, stand outside by yourself, and then ask the leader or customer to go in first.

3 For the revolving door, you should walk into the revolving door yourself, and then signal the leader or customer to enter.

closing etiquette

1 when closing the door, be sure to keep your voice down.

2 when you close the door, you should face the host in the room instead of slamming the door with your back to the host in the room.