How to remind the upstairs to be quiet?

Written explanation, direct communication, seeking property management help, etc.

1. Written explanation: Write a friendly explanation, stating that people upstairs are expected to reduce noise and ask for cooperation. Leave the note at the door upstairs or pass it to the people upstairs by other appropriate means.

2. Direct communication: None of the above methods has any effect. You can choose to communicate directly with people upstairs. Knock on the door politely to show concern and ask them to reduce noise. Please make sure to remain calm and friendly during the communication.

3. Help property management: you can contact the property management department or the apartment management office to reflect the noise problem upstairs. Take appropriate measures to solve this problem, and remind the residents upstairs to reduce noise or make necessary mediation.