How to find out if he's interested?

well, dont worry about his height, you guys are still in middle school. maybe you can get his screen name or something. I prefer talking to people in person, but if your too nervous to start a conversation in person, IM him.

Guys are hard at that age because they don’t always show if they like you or not.

Try to find something you guys have in common and maybe ask him a question about it - guys like to show that they know stuff.

Do you play ball too? If you do - maybe challenge him to a game - or ask him to show you how to shoot like he does.

I wouldn’t worry about the height either - he may grow still. My boyfriend was 6 inches shorter in 8th grade - but by our junior year of high school he was 6 inches taller!

well since that looks like that is not going newhere.. I suggest you MOVE ON! :]

try talking to him, start some harmless flirtation :]