Cheerfully

Adverb

 * 1) In a cheerful manner.

Thesaurus
affably, agreeably, airily, amiably, amicably, blissfully, blithely, cheerily, confidently, cordially, enjoyably, expectantly, fair, fondly, genially, gladly, graciously, gratifyingly, happily, hopefully, hopingly, irrepressibly, jauntily, joyfully, kindly, lightly, optimistically, pleasantly, pleasingly, pleasurably, sanguinely, satisfyingly, smilingly, with good cheer