Ask him what his problem is! Tell him to take a picture! Stick your tongue out at him! Tell him you think he's creepy! Here's the best one, transfer out of his class!
Help????.... How can I make someone lose interest in me?... it's not like one of those relationship thing.. he stares at me like everyday in school and it makes me feel creeped out..... He's a professor by the way..
Ignore his stares go on about your normal business
If he persists:
1 ignore him some more
2 tell him you feel uncomfortable with his stares
3 ignore him (that's what I would do)