My deskmate is alone. It sucks my nose in class every day. Every time I say it, it says I mind my own business. I have nothing to say. what can I say?

I don't think it matters. Don't be led by the nose so easily.

Ask the teacher directly for the switch, saying that your deskmate's behavior makes you unable to concentrate when studying.

If the teacher disagrees, he says ` #76, if the study declines, it is the direct result of the teacher's wrong decision (of course, it's just a joke, don't really do it).