I really like this guy,and he's kinda my friend but we don't talk much anymore.How can I get him to noitce me!

I met him last year. He sat behind me in homeroom and 3 chairs over in math. I think he liked me then, so he knows my name and everything. I never relised it but I really like him. I think he knows, but I'm not sure. I've thought about sitting with him on the bus, but I'm scarred he'll think I'm a freak. What should I do to get him to think a little more of me? Its really hard to just sit there and daydream while I stare at him.