Haha, the story behind this just took it from cute to ah-mazing! :-P I took drafting classes in high school. I once sat next to a cute foreign exchange student from Iceland. :3 #random-story-of-the-day. I wish I could remember his name. I wanna say Yuri something...or not. I dunno. I'll stop rambling now.
Haha, the actual purpose aside, I can kind of see why Zi(?) would tell Pon(?) to stop looking at him - Pon has this blank staring expression that's probably intended to be creepy? I'm impressed by how simple yet perfect the expressions are in this one.