You think there's nothing to talk about. Where's the other guy? Do you also feel that you have nothing to say?
"Chatting" sounds simple, but it is actually very complicated. Long time no contact, nothing to say. Good friends always meet and have nothing to say. After a few pleasantries, they were embarrassed. This is why there are many "like-minded friends" now, such as donkey friends, bar friends and so on.
Finally, they will give you a perfunctory answer, because you ask them sincerely, regardless of whether others are sincere or not. Can there be interaction? I might talk to you if I have nothing to do. Pretend not to see if you don't want to talk. Most of the people who actively and enthusiastically reply to you are your classmates' assistants. ...