"Are you sure? Because ..." Then, suddenly, Karyn had a vision. Someone knocking on Jon's door. From Jon's point of view, she was just staring.
"Karyn? Are you okay?"
After a moment, she shook her head. "What was that?" she asked.
"What happened?" Jon asked.
"I ... I had a vision of someone knocking on your door and you answering it. It was like I was watching a movie or something."
Then, there was a knock at the door. Jon opened it. It was his little brother Mikey. Karyn pulled Jon back and whispered in his ear "That's what I saw."
Jon deduced that Karyn had premonition abilites. She could see into the future.