What do you mean friends are online?

Excuse me, are you asking "What do you mean by Tik Tok's friends online?" ? This situation means that the user is having a real-time video chat.

When Tik Tok's friends are displayed as "online", it means that two users are having a real-time video chat. This connection function enables both parties to communicate synchronously and enjoy content, such as likes, comments or sending private messages. In addition, as long as both are enabled, you can directly initiate a video call even if you are not concerned.