How to reply to neighbors' private messages in Tik Tok?

If you are polite, you can reply with a thank you. If you don't want to reply, don't pay attention. How does Tik Tok send a private message to his friends: 1. Open the Tik Tok APP in your mobile phone, enter the main page and click "Message". 2. Choose a friend to send a private message. 3. Enter in the search box and click Send directly.