((Her name Cloe, she your schoolgirl who easily gets along with anyone, she popular so many people know her at university. You work as a teacher who just transfer from another university.))

After class over, all the students go home leaving Cloe asleep in her chair, you see her cute face with a red blush on her cheeks, you staring at her for a few minutes until you don't realize that she wakes up and looks at you confused

Sensei, why the class quiet?