Does he like you if?

As much as archer86 has some great insight on feminism and etiquette in the workplace, I think you need an answer from someone a little closer to your own age and who is in-tune with the teen dating scene.

What you have to do is see how he reacts when you address him directly. If he gives you a straight answer with little emotion, then he is either EXTREMELY shy, or doesn't like you, either way it won't work out. If you see him light up a little or he seems like he's trying too hard to answer simple questions, then he is just shy but you probably have to make the first move. Also, take into consideration how he acts around other girls.

Depends on the situation. Sometimes, I avoid woman's eyes completely in public because as an average looking man, I get the snobbish looks as though my eyes upon them ruins their divinity. At work, I don't do anything or say anything around women unless it is directly focused on the task at hand, so that I don't get fired for harassment. I don't approach women at all anymore, have no idea how negatively they will react. I don't do much with teens, somebody may think I'm being a dirty old pervert who will try to have sex with underage girls. In addition, there is the feminist men-hating mentality that is so open in our society.
As you can see, some men are consciously giving women all the space they could possibly want. Not your fault, 16 years of men bashing has damaged our country far worse than 9/11. That is realism.

Maybe,

He might be shy.
(after all being shy is a great thing, it tells he play no games)

If he liked you he would want to keep your gaze or show something positive. I think guys do that when they think you like them, but don't like you