Words used to describe facial expressions in English

source: Learn English with Let's Talk    2015年3月16日

Beaming - smiling broadly; grinning
Quizzical - showing that you are confused or surprised by something, and perhaps that you think it is rather strange and funny
Grin - To smile broadly, often baring the teeth.
Winced - The facial expression of sudden pain.
Dirty Look - An angry face or a frown.
Pouted - To exhibit displeasure or disappointment.
Glazed over - A glazed look or expression shows no interest or emotion.
Long Face - An unhappy or disappointed expression.
Unreadable - If someone’s face, eyes, or expression are unreadable, you cannot guess what they are thinking.
Dumbfounded - An expression on the face as if struck dumb with astonishment and surprise.