Is he just shy or not interested?

[Juju]

I started talking to this guy from school over social media a couple weeks ago. He messaged me telling me I was cute and was really forward. He's foreign, just moved to the US about 2 years ago. He's really sweet and funny and we texted nonstop for a while. Once we finally met at school (we don't have classes together), he was really shy and only used one word answers. I thought he might not be interested but then he started asking how I got home and where my last period was. I thought this meant he might want to drive me home so I asked him to. The car ride home was silent but he seemed to be comfortable with it. When we text, he starts the conversation most of the time. I've been so sweet to him and tried to get him out of his shell by asking him questions.

I'm genuinely interested in him and it's driving me crazy with all of these mixed signals. He always wants to see me but once we're together, he's silent. Not sure what's going on... Do I pursue him or lay off?

Btw, I've talked to some people who know him and apparently he's never had a girlfriend here before, so he could just be inexperienced?