She doesn't know how to behave in public.

她在公共场合举止无措。

《牛津词典》

Mr. Blake was a gent. He knew how to behave.

布莱克先生是位绅士，他知道该怎样行事。

《柯林斯英汉双解大词典》

He often forgot how to behave well.

他经常忘记如何举止得体。

youdao

Some stories are religious, others are moral, like the one about how to behave when you fall in love.

VOA: standard.2009.12.11

And finally, there's a new situation and no model of how to behave.

最后，如果这个实验没做过,我们就没有行为模式可以借鉴。

耶鲁公开课 - 心理学导论课程节选

However, the question is, how do I choose to behave, to act as a result of it?

问题在于，我要选择怎样的行为，去表达情感？

哈佛公开课 - 幸福课课程节选

Mainstream society still has no clue about how to behave when confronted with homosexuality.

CNN: ASIANOW - TIME Asia | Young China | 'Is There Anything Wrong with Love?'

Encourage and support private-sector efforts to teach youngsters how to behave ethically in cyberspace.

CNN: Global panel issues Internet security recommendations

It struck me that workers deal with personal tragedies every day, and there's no rulebook for how to behave.

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