If a guy just stares at you but rarely smiles/talks does that mean he hates you?

Say a guy always stares at you and when you pass by him he stares and look in your eyes but rarely ever talks and/or smiles...Does this mean he hates you because he's very pleasant around other people but with me he gets all red in the face and can barely crack a smile and when he does it's just a half way smile.

I've never done anything wrong to him so not sure why it feels like he hates my guts.

This guy does other strange things with me too, not just the staring.