sternly

actively earnestly passionately sincerely vigorously

gravely

all joking aside cool it cut the comedy determinedly down fervently for real in all conscience in all seriousness in earnest intently purposefully resolutely sedately simmer down soberly solemnly straighten out thoughtfully with a straight face with forethought with sobriety zealously

casually funnily lightly minor trivially

acutely badly critically dangerously extremely firmly markedly painfully seriously sharply sorely strictly

gravely hard

hardly intensely rigorously roughly with an iron hand

mildly

compassionately lightly