1. Don't flush the main entrance (the door that comes in from the outside doesn't matter, but don't flush the toilet), because the main entrance is the place where the janitor or the god of wealth is in charge, and you have no right to ask.
2. Don't rush to the mirror, because the mirror will produce glare and taboos.
Don't face the bed, it's not good for you.
Pay attention to these, and other positions will not be affected.