Does he possibly like me?

[Miss Reckless]

So, there's this guy, he goes a year above me in high school and sometimes I saw him, but we never actually talked. However, last week, me and one of my classmates were advertising some sort of event in their classroom and a day after, he sent me a Facebook friend request. Then, he started poking me and even messaged me. We talked a few hours, but since I suck at keeping a conversation going, especially with strangers, we just stopped talking.
Next day again: poke-war, messages, getting out of topic ideas. After that, we saw each other in school, while walking to our classes, and he kept making eye contact, without a word. When we met again, the same day, he said hello, but we didn't have the chance for an actual conversation. Since then, I've only got a few pokes, nothing more.
Now I don't know what to do. Should I write him or wait until he does something? I'd write him, but I'm afraid, that the reason he doesn't write me is that he thinks I'm a bore (which I'd completely understand by the way). Also, if you have some suggestions for things to talk about? I really suck at stuff like this. Music, summer plans, hobbies, school, teachers... uh.
Thanks for the answers

PS.: Sorry if I made mistakes, English isn't my native language.