Shaking your head for 'No' is not universal.

以摇头表示“不”，并非放诸四海而皆准。

《牛津词典》

There was silence now; and there was no head there but was bent in reverence, except this man's.

这时候一片寂静，除了这人以外，其他人都恭敬地低着头。

youdao

youdao

We meet,we talk about what the hike is for the day, and then they pack their backpacks and we head out the door - no matter what the weather."

VOA: standard.2010.06.25

(Speech) Iran's official Arabic-language al Alam TV is reporting (No Transcripts) The Iranian Student News Agency reported earlier the head of the parliament's national security committee, Alaedin Borujurdi, would put the U.N.draft nuclear deal between Tehran and the West to a vote of his committee after discussing its pros and cons.

VOA: standard.2009.10.28

However, as pointed out by Dr. Ben Goldacre (Bad Pharma, p 225), no head-to-head comparative trials of statins have ever been done.

FORBES: Do We Really Need Head-To-Head Comparison Trials With Statins To Improve Cardiac Health?

"We're delighted Deacon Manu has finally put his hand up for Fiji, look around there's no better tight-head prop than him available to represent Fiji, " said Fiji selector Mosese Taga after picking the prop in his squad.

BBC: Prop Manu commits future to Fiji

No tackling head-on of any controversial issues.

NEWYORKER: Dead Man Laughing