What are the manifestations of teacher-student love?

Performance 1: There is always a lot of interaction between teachers and students, and the teacher will also pay more attention to the student. He will often deliberately provide tutoring or answer questions to the student, and may deliberately do so during class. Ask each other questions, and interact with each other after class, constantly discussing the answers to the questions and specific problem-solving ideas. The purpose is to contact each other in this way, so as to communicate with each other in a way that leaves no trace. It won't make others suspicious.

Performance 2: Students will cooperate with the teacher's lectures during class, and even make some jokes. The teacher may raise the corners of his mouth a little, but no one will notice it immediately. After they finish class, there will be some other intervals so that others will not doubt the relationship between the two people. But once school is over, the two of them may meet intentionally or unintentionally, or they may walk together on the way home.

Performance 3: Students will take the initiative to go to the teacher’s office to ask questions, or will let the teacher find them for various reasons, and even look at the teacher with a trace of indescribable ambiguity.