1) Brightly 2) Briskly 3) Cheerfully 4) Dashingly 5) How prancing is done 6) In a blithe way 7) In a carefree way 8) In a cheery manner 9) In a gay manner 10) In a happy manner 11) In a happy way 12) In a high-spirited manner 13) In a joyful manner 14) In a joyous way 15) In a merry manner 16) Joyfully Found on https://www.crosswordclues.com/clue/gaily