Sweet words make teachers happy.

Hi, teacher! (this statement is expensive in persistence, persistence)

Teacher, I can't do this problem (remember, it's a little more difficult, don't ask that stupid question that knows how to set formulas. After asking nonsense, as long as you don't want to hit on her/him, expand)

Teacher, I'd like to ask ... (The object is mainly the class teacher, anyway, you can just say it casually)

Teacher, where did you buy this dress? It only works for teachers who dress appropriately and must be teachers of the same sex. If you say you want to buy one for your brother/sister, I think he/she will be happy to talk to you for a while.

Well, after talking so much nonsense, you don't need any sweet words to make the teacher happy. Disturb him/her when he/she has nothing to do at ordinary times. Give him/her a simple blessing on holidays and add his/her Q to make him/her Weibo. As long as you treat him/her as a friend, he/she will naturally get on well with you. Of course, if you want to hook up with him/her, try not to have too much contact with her/him at school, otherwise it is equivalent to reminding him/her of his/her teacher status, thus distancing yourself from you.