after they 're seated , the show 's producer , courtney whitaker , gives them some instructions on how to behave : keep your attention focused on martin , look interested in what 's going on -lrb- so the cameras can get good crowd reaction shots -rrb- , laugh appropriately -lrb- heartily or modestly , depending on how good the joke is -rrb- , and go `` oooooooh `` when yan presents one of the finished dishes. ; yan , standing in the wings , breathes deeply , lifts some imaginary dumbbells , and does some knee bends .