The glasses

This is the first thing I ever wrote, so please don't expect too much and give feedback if you want!
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I hate him. I really do. He's a know-it-all and his voice is just super annoying.

She has this look in her eyes that I can't quite explain. Kind, but hating. Containing a lot of wisdom and still having so much to learn.

"Goodmorning Mrs. Smith" He enters the classroom 15 minutes early as always, but this time, I was the first one. I see the look on his face when he notices I'm sitting on his place, in the front.
"Why are you sitting on my place?" he asks. "Why not?", I answer. "We don't have fixed places here." He looks a little confused, but also mad. "You won't get away with this, Rufina." And he goes to sit on my place, maybe as revenge. I don't care, I just wanted to annoy him.