楽しそうに の訳語→ cheerfully genuine happily
勢いよく の訳語→ briskly determinedly eagerly emphatically energetically furiously hard smartly suddenly
待ってましたとばかり の訳語→ immediately keenly
陽気な の訳語→ breezy cheerful convivial effervescent elevated gaiety good-natured high-spirited pert up-beat upbeat venturesome volatile
陽気に の訳語→ exuberant good-naturedly heartily hilariously jollily