First: if you really ask the netizen who chats with you about QQ whether you surf the Internet in an Internet cafe, then you can be sure: one way is the simplest, and the video will be known at a glance; The second is to find out your QQIP address with related software.

Second: If you ask people in the same Internet cafe if they can know, there are two possibilities: first, the Internet cafe where you surf the Internet has joined the QQ Internet cafe, and there will be a QQ bar record in the QQ of the Internet cafe, so the netizens who surf the Internet in the Internet cafe can initiate a temporary conversation with you through the bar platform, of course, they will know that you and she surf the Internet in the same Internet cafe, and second, on the contrary, they will generally not know.