I met a guy through facebook.. is he into me?

Okay well theres this guy whose now at my school. And he added me on facebook a while back (before he went to my school, he's a year younger than me). So like a month or two later I was bored so I messaged him and asked him why he added me on facebook. He said, "Oh did I add you on facebook? Sorry. I probably just went down the list and added everybody. You can delete me if you want to". So then we started talking. And later on I said I had to go and told him I would say hey if I saw him in the halls. We did. We both looked at each other at lunch. So later that day I got online again and he messaged me saying, "hey I think I saw you today, lol" so we started talking and he said he kept looking back at my table but he didn't want to say anything because he wasn't sure. So he always looks at my table and stuff now. So 3 days later I asked him a question about homeroom. And we started talking again. And he asked me how my day was and everything. We haven't really talked in a week now. And I'm not sure if he's just too shy to message me or what. Do you think he like me?