How to give the teacher a gift, whether to take it directly or call and send a text message in advance, because I'm afraid I'll be nervous before I send something.

Direct, of course. . And I don't seem to take this as a gift. Teachers are very taboo about accepting things from students, and you can't give them away even if they are expensive. . It doesn't matter to send some local specialties or snacks. .

What matters is not what you give the teacher as a gift. The key is not to highlight the word "gift". . For example, if you send a set of cosmetics or other things to the teacher, you can only say: which relative of mine gave it to me, and I didn't think it was necessary, so I brought it to the teacher. . Teachers are more receptive and have no psychological burden.