What to do.. i have this someone on my mind ...

Hi.

     If you really like him, call or e -mail him and just talk to him about things that may interest him like sports, school. his plans for college, any subject to engage him in  a conversation.  Perhaps he is just very shy and hopefully he will invite you out.

Hi,
Dogbreeder gave you an excellent answer (creditted her with 2 thumbs up).  All of us were in the same or similar situation..... If you want something you have to be proactive (if you just sit and wait you won't, most probably, get it)....  it's not time to be shy and hide your feelings, better be brave and talk to him face-2-face (that's the best)..... if you don't have the guts call him, or send him a letter / note / e-mail..... If you don't do it you'll always think: "What would happend if I did do it ?".... Go for it don't even hesitate.
Best regards.

OronD is correct in his suggestion. Such a conversation is not threatening and doesn't make you look "pushy." If this will not get the relationship moving you should get involved in making new friends. Keeping busy will do wonders to get your mind off him (a wasteful activity) and enable you to meet more responsive people. At your age you have plenty of time before getting into a serious relationship.