Can't tell if my crush likes me back?

am

So this guy at work is really cute and I've been coming onto him pretty hard so I think he got the message I'm into him. We were at a party playing beer pong together and one of his friends yelled out that we should be together, to which we both laughed off and said nah h. It's hard with him because he's kind of shy and quiet, so if you want to talk with him you have to be the one to initiate most of the time. He's driven me home a couple times (from work) and nothing romantic really happened, but we had nice conversation. He likes all the same music as me, he's just so goddamn cute! He had a stash of Clif Bar wrappers in his car so I surprised him with one when we were working, and I guess he told his friends that I bought him one and that he drove me home from work a couple times. I know he told his friends because the guy that said we should be together works with us too and was telling my other co-worker about it. I haven't had a crush since my ex and I broke up 5 months ago and i never made myself available after the breakup, so this is big for me. I've stopped flirting and decided to wait for him to initiate conversation, which he has on a small level. I also haven't had sex since my ex, it was a really hard breakup. I don't know how to tell if he likes me, or if I should give up and realize he's just not that into me!