blush

to become red in the face because you are embarrassed or ashamed อาการหน้าแดงเพราะเขินอาย, ละอาย

"I have good memories mostly, until I remember what we were wearing!" says Louis, blushing.

Dame Helen Mirren blushed incredibly when the famous bikini photo was flashed on the screen behind her.

Andrea blushed, she was speechless for a while, and then she whispered, “No, he's not my boyfriend.”