I need help with a boy!! Please help me!?

Okay so there's this boy that I really like on my bus. I'm pretty sure he likes me too so I'm just trying to find a way to let him know. That's what I need to know. Since he's a year younger than me I only talk to him on the bus. I need a simple way to flirt with him that will only take around 10 minutes. He looks goth and listens to hard rock and everything, but is shockingly sweet. Thanks so much. If you have any past experience that would be great! : ))