"Little Kert, this is how I would answer question #1!"
All of a sudden, both the serious-thinking chief and his self-doubting son broke out in amused chortles.
"Hey, hey!" Rizz tapped his pointy fingernails on the table to grab their attention once more. "I don't mind if you have fun in my class, but keep in mind that I'm only giving you a single course for free. So listen up if you don't want to pay up!"
That instant, the father and son straightened their backs and stifled their childish chuckles.
"Good… Now that you're finally opening up and getting out of your own heads, I'll review question #1 for the class to learn first-hand." Rolling his eyebrows, Rizz noted how astute and sharp their eager gazes had become.