Be yourself. If you act, teachers will tell the difference (assumeing they are doing their job, as opposed to just doing it for the money).
You cannot "make" people like you, and teachers are people. What you can do, is be yourself. As long as "yourself" is not a person who cusses alot, deals drugs, picks fights with other students, or turns your work in late, with little to no effort involved, your teacher should like you just fine (again, assumeing a decent class size, and a teacher who teaches).
~John

