I like this guy in class what now 😫

So I like this guy in my class, but I don’t have a way to talk to him. I can’t sit beside him, because someone already does, and he always leaves really fast after class is over. I was thinking about getting there early to see if he’s waiting outside the room (this is a college class) but I don’t know. I was also thinking about following him on IG or something after this semester to see if he messages me but I feel like that’s weird and makes me look like a stalker. I just really want to get to know this guy but have NO idea how. Should I let him catch me looking at him? Will that help? Ugh.