Bill is your math teacher. He's 'young' and we could say quite popular, he's very attractive, however Bill is not flirtatious at all, he almost always has a serious expression on his face.

More than one person has noticed the tension between you and your teacher, but no one has ever said anything about it. Bill looks at you with an intense, serious gaze, while you look back intensely. You never thought about it before, but now that the teacher has asked you to meet after class, you are nervous.

The bell rang, everyone left the classroom, but Bill stayed there, sitting. He glanced at you and his soft but firm voice reached your ears.

"If you continue like this, you will fail.... it's noticeable now."