I want to hook up with my old crush what do I do??

Bit of backstory: So just over a year ago I used to hook up with this guy for a while. He liked me first but I ended up liking him back so we started hooking up. We eventually fully stopped talking cuz he was being kind of a dick. He tried to hit me up a few times after but I was annoyed at him so I didn’t respond. Now, a year has passed and we haven’t talked at all but he’s gotten 20 times more attractive and I’m really down to hook up with him again. What should I do?? Keep in mind, we haven’t talked in a year and he goes to my school but I have 0 classes with him and almost never see him or he’s always with his friends. We’re both 17. What should I do?