Isaac entered the classroom and walked all the way to his seat, which is located on the last desk in the first row.
He kept his head low during his walk and sat down in silence.
He turned his body halfway and opened his backpack. He grabbed a blue notebook and put it gently down to the desk.
The classroom was half full, with most of the students hanging out with their friends.
Few took glances at Isaac and was surprised to see him in the classroom so soon. There was still about 10 minutes before the start of the class starts, and usually, Isaac would be hanging out with his friends.
Isaac grabbed a pencil and started writing on the notebook. His movements seemed fluid and precise; it was like the pencil was another limb of his body.
After he was done writing the first page, he glanced at the clock and saw 5 minutes remaining. He stood up, and under surprised gazes of everyone, he walked towards the first row.