A good way to grab his attention in a few days?

lol.. omg again; i go through this. I only have 3 days til my senior year is over.. BUT i really like this guy, we have talked atleast once and thats it. I know that hes a leo and that im a cancer... so things might work out. I guess you can say im crazy for him, i seem to see him EVERYWHERE.. and its driving me nuts. I just want to tell him that i like him. but im afraid on what will happen and how he'll react. Most guys dont like thick girls.. (heavy set). i noticed hes got tons of girls for friends and hes hardly alone. Plus i know getting my friends to tell him is a big no no... sorry that this is long.. but i need tips :P help :DDD