This awkwardness between me and this guy?

so there's a guy that isn't in my class buti can tell he liked me. But now that I know about his feelings, I'm pretty sire he knows I know. And now when I see him he looks at me and I look away and it's really wierd cos when our eyes meet we look away and he looks at me kind of in a mean ignorant way so I don't want to smile at him or anything I just don't like the awkwardness