Silly

Aside from noticing the occasional glance or odd stare during class, Keith put his full attention on forgetting what had taken place outside the classroom. What happened wasn't his fault after all. If anything it was Caroline's fault for the things she assumed that he never agreed to. 

Near the end of class, he did get distracted when his phone suddenly buzzed with a string on text messages. He peaked at it on his lap with this left hand so that the professor wouldn't notice what he was doing while he took notes with his right hand. 

They were a collection of texts from Chester. If the other was texting him so many times, he knew that something must have been up.