You are casually sitting in snapes class taking notes to what snape is saying. You don't notice how draco in the back folds a paper swan with a broken arm. He puts a spell on it and blows it over to you. You only realize it when the swan has already landed on your table. You don't have to be a genius to know it was draco who blew it over to you, it's pretty obvious he likes you but you aren't easy to get.