In most countries, nodding the head up and down shows agreement, while shaking the head means that you do not agree, or that you refuse to do something.

在大多数国家，点头表示同意，摇头则表示不同意，或不愿意去做某件事。

youdao

Refuse to do something.

拒绝做某事。

youdao

He demanded that first, the Palestinians must recognize Israel as a Jewish state, something they refuse to do.

VOA: standard.2009.04.17

That would force us to reduce our support for wounded veterans and their families--something we refuse to do.

FORBES: Clean Hit?

For there is something that journalists can do to slow it down: they can at least refuse to be cowed by the accusation that to be professional is to be elitist.

ECONOMIST: The press in the spin cycle