(I will be using Story, also known as Third Person, format for this RP)
Billy looked at the girl, trying to get a good look at her. Once a few seconds passed, they continued their sketch of her. The reason they were sketching was that they were making a profile for everyone that they found "Odd" in the class. They had come up with a few theories as to why she was always looking at guys weirdly, the most notable theories being that she doesn't understand guys or that she's just hypersexual in a way and/or wants to have a romantic relationship with one of them.
(Billy is Non-Binary, but they were originally a Guy, so if you want to go with romance for this, you can)