How do I stop thinking about him?

[Phoebe]

A few weeks ago I got send home from school in the middle of the day because i fainted. I got the public bus back to the city I live in, from the town I go to school him.
The village after the town I go to school in, is the village my dad lives in. This guy got on the bus that used to go to my school. He's in his first year of college now in the college in the city I live.

I was sat on the seat with my feet on the set next to me, listening to music and on my phone. This guy got on the bus and sat on the seat on the other side of the isle to me. When he got on he looked at me. A few times that I looked up from my phone he was looking at me and then looked at his phone when I saw him.
When we both got up, he banged his head on the ceiling. He looked up at me and did a little cheeky grin, I did a little smile back and then we both got off.

We're friends on Facebook, I'm nearly 15 and he's 16-17. I can't stop thinking about him!!
Why did he look at me and smile at me?
What should I do? I can't stop thinking about him, he's popular though I think (im not) and I've never really spoken to him.

*me and my friend share an account, I'm single and she has a boyfriend, so if you're wondering why the questions don't match, that's why *

[Nanner]

Well you said that he banged his head on the ceiling so he was probably a little embarrassed (especially if he wanted to impress you) and wanted to laugh it off. Good news though, some guys get a little klutzy around girls they like. And how can you stop thinking about him? Impossible unless you find another guy but then you just obsess about that person.

[jamie]

He smiled at you because he probs thinks youre cute. You should message him and be like hey i saw you on the bus but i didnt recognize you (just lie to start the convo) from there he will be like oh yeah hey, make sure to have a fun good convo yknow keep it going for a while and then suggest you guys hangout and get his number. You seem to have a crush on an older boy, deadly but fun, good luck xx

[Ilka]

he maybe thinks your beautiful .. don't care about popular .. just try to say something like : hey, how are you? is your head okay ? on facebook ..or wait and see ..