expression, godan verb (-u)
the eyes speak as much as the mouth; a look can say more than words
Proverb meaning that one's eyes or facial expression can convey feelings and intentions just as effectively as spoken words, often revealing true thoughts.
See also: 物を言う
彼女は何も言わなかったが、目は口ほどに物を言っていた。
She didn't say anything, but her eyes spoke volumes.
目は口ほどに物を言うというから、表情には気をつけよう。
They say the eyes are as eloquent as the tongue, so let's be mindful of our expressions.