There is a point on it. Just click on three points, and you can see the friends you said you would like to add. Just click on Add Friends, and you can have a continuous wheat with strangers.
You can add friends directly in the live broadcast room. If you want to add friends to the live broadcast room, you can click Tik Tok, then find a live broadcast room, and then click the user's avatar below to see his users. If you have friends to add, you can add them directly on it, so you can add them successfully.