1 refers to the principle that when expressing happy things in interpersonal communication, the number of times you use the word "ha" should not be less than five times: one ha means rolling, two ha means insincerity, three or four ha is too perfunctory, and only five ha and above are the real teasing.

2. Five Ha principles come from the courseware used in Zhengzhou backbone teacher training class. This courseware aims to train teachers how to use emoticons and emotional symbols when chatting with young people. I was really touched by the good intentions of the old teachers.