blithely

adverb
1
in a way that shows you do not care or are not anxious about what you are doing
بی‌خیالی, بدون نگرانی, با بی‌فکری, بدون اضطراب
2
in a happy way; without any worries
شادمانه, بی‌خیال, سرخوشانه, بی‌دغدغه, با خوشحالی
‘Hi, I'm Candy,’ she said blithely.