Use 'prettily' when giving a subtle compliment without over-praising. He noted how she responded prettily to the compliments on her presentation.
Pro Tip 2/3
Visual Appeal
'Prettily' adds a visual note, ideal for describing pleasing aesthetics like clothing or decoration. The room was prettily lit with candles for the celebration.
Pro Tip 3/3
Not Overwhelming
'Prettily' is for expressing a moderate, not extravagant, level of beauty or appeal. She sang the song prettily, her voice gentle and soothing.