This guy keeps staring at me but avoids me when I’m close. He runs away when I’m coming towards him but stares at me from far away. Why?

He likes you a lot but is either too shy to approach you in public (stage fright?) try approaching him (if you are also liking this guy) and hand him a chocolate milk and just sit and tell him things you have done in the past.

That takes the pressure him (He feels that believe me) and allows an easy interaction without the "BIG awkward initial meeting" and gives him time to think about what he responds back to.

Then just keep chatting.