Blushing can occur in a number of contexts, such as when a character is receiving praise or trying to make a point. The character is even more endearing when they blush. It's also interesting to observe how they cover their mouths, touch their hair, and make other small movements.
Sakura Futaba (from Persona 5) seems to be trying her hardest to hide how pleased she is with her gift.
Have any of the blushing beauties below warmed your heart?