表達 「not know where to put oneself（不知道該把自己放在哪裡）」 用來形容 「某人非常不自在或尷尬」，有時也表示 「侷促不安」。
That comedian was really bad. His jokes were so awful, I didn’t know where to put myself.
When she rejected his proposal in front of the whole restaurant, he didn’t know where to put himself.
Was my singing that bad? You don’t look like you know where to put yourself!