Panel 1: (A thumbs-up and a thumbs-down)
DOs & DON’Ts SUGGESTED BY THAT DEAF GUY: WHEN GETTING A DEAF PERSON’S ATTENTION…

Panel 2: DO FLICK A LIGHT SWITCH A COUPLE OF TIMES.
(Desmond is writing at a desk, turning his head around and waving to Helen. She is at the doorway in the back of the room, flipping the light switch with FLICK! FLICK! sounds. They are smiling)

Panel 3: DON’T FLICK A LIGHT SWITCH A GAZILLION TIMES!
(Cedric is at the doorway in the back of the room, sticking out his tongue, flipping the light switch with effort, making sounds: FLICK! FLICK! FLICK! FLICK! FLICK! FLICK! FLICK! FLICK! Desmond is sitting at a desk. He looks uncomfortably dazed, sticking out his tongue, and dropping his pen)