He will tease you, smile at you, talk alot around you or be shy around you. He will want to know things about you and he'll want to hang around with you more than usual. Ask him if he is coming out one night and then just have some fun like you both are just good mates, then see where it goes from there. He might kiss you, you might not even like him. If you don't like him, then let him down nicely.
looks at u alot n smiles at u!