To send a private message to a streamer, you must first join the streamer's fan group. If it is Douyin, you need to follow each other before you can send a private message. If you don't follow each other and add each other as friends, you can only send one message for free. Of course, there is another way, which is to go to the streamer's private WeChat. After adding WeChat, you can chat and send private messages to each other. These are the two methods I can think of at the moment.