HELP! What to talk about tomorrow with this guy I like that I have just started sitting next to in my cl?

Ok, I got up the nerve to sit next to this guy I like in cl and all has been well. We have engaged in light small talk and joking together. Anyway, I think it's clear he wants me to sit next to him again and I am in as he said "See you Friday!" I am like "Yep!" Anyway, not sure if he's gay or anything but I am not sure what to talk about during cl tomorrow. We'll he stop liking me if there are a lot of awkward silences. Because we've already discussed the cl, the college we're going to and what cles we have, our jobs, etc. I need something that will last for an hour. Do I need to keep him excited and laughing? My dog died but is that a bad idea. He can always tell me about a party he went to the night before, but I am not a party person and I don't even like sports. I mean, I watch Real World/RAW/Judge Judy/American Idol,etc. and hang out in places like this. I am not about to reveal any of that right now. So what to talk about for an hour?