A knowing look or a knowing smile shows that you understand something, even though nobody has said it out loud. The look is the message: I know, and I know that you know. It can feel a little teasing, or a little pleased with itself, as if you are in on a secret that other people have missed.

A knowing look or a knowing smile shows that you understand somethingA knowing look或a knowing smile表示你懂了某件事，even though nobody has said it out loud就算沒有人講出口。The look is the message那個眼神就是在傳達：I know, and I know that you know我懂，而且我知道你也懂。It can feel a little teasing, or a little pleased with itself它可能帶點調皮，或有點自滿的感覺，as if you are in on a secret that other people have missed好像你知道一個別人沒發現的秘密。

This is not the -ing of a verb in progress — English does not really say I am knowing. This knowing sits in front of words like look, smile, glance, and sometimes remark.

This is not the -ing of a verb in progress這不是動詞進行式的-ing——English does not really say I am knowing英文不太會說I am knowing。This knowing sits in front of words like look, smile, glance, and sometimes remark這個knowing會放在look、smile、glance，有時候remark這些字前面。

It is a little like story-book English, but people still use it. Though actually, a knowing smile is not always kind; it can also say I have caught you.

It is a little like story-book English它有點像故事書裡的英文，but people still use it但人們還是會用。Though actually不過其實，a knowing smile is not always kinda knowing smile不一定是善意的；it can also say I have caught you它也可能是在說「我抓到你了」。