He opened his lips as if to say something.

他张开嘴似乎要说些什么。

《新英汉大辞典》

He's shrugging as if to say, who me?

他耸耸肩膀，好像在说，谁？我？

youdao

He looked at me as if to say, "I am not telling you."

他看着我的表情就像是在告诉我“我不会告诉你的。”

youdao

The researchers say if hospitals do these things, they will reduce medication errors, as well as the costs related to these mistakes.

VOA: special.2010.06.16

So "Extol him who rides the clouds, Yahweh is his name," as if to say not Baal.

所以出现类似的“赞美御风而行的人，他的名字叫耶和华“,就像是在说耶和华，而不是Baal一样。

耶鲁公开课 - 旧约导论课程节选

So I don't know if it Does it matter what you say to babies as long as you say something.

所以我想知道,是不是只要你对婴儿说话就行,说话的内容并不重要

耶鲁公开课 - 心理学导论课程节选

She walked past me, nodding at me as if to say, 'We're going to win this thing.

CNN: The voting rights martyr who divided America

Samat shrugged as if to say, The matter is out of my hands.

NPR: Excerpt: 'Legends'

He had resumed eating and, with his mouth full, raised a fork, as if to say, You can see for yourself.

NEWYORKER: In Other Rooms, Other Wonders