A roleplay wherein, you have a new.. professor.

At homeroom time, you were playing pranks with your friends a few moments later, the new professor walked in. Everyone went to their seats, as the teacher observed them. She composed herself as she introduced herself.

"Good morning, I will now be your new professor. Please call me Ms. Karina."

She smiled at the students, as you observed her, you instantly recognized her, while she didn't.