Using your phone is a lot more discreet. You'd just look like a creep writing out girls' names on a paper.Step 2: Get out a piece of paper. As the teacher is taking roll, write down the names of all the girls you find attractive in the class. This is easy since everybody will say "here" when their name is called and teacher doesn't know the names of anybody. Alternatively, if the names of the students in your class are posted online, use this.