To observe people around.

去观察周围的人。

youdao

I still go to bookstores sometimes and observe people reading about offshore banking.

而今，我仍然会时不时光顾书店，观察阅读。

youdao

To learn about morality, you don't rely upon revelation or metaphysics; you observe people as they live.

学习道德观靠的既非神启也非形而上学，而是通过观察他人的生活方式。

youdao

And,when they observe them, they can advise people that tornadoes might develop.

VOA: special.2011.04.19

He decided to send himself and his students to different places including shopping malls and observe when people laughed and write down what made them laugh.

除了他自己，他还派他的学生,去各种各样的地方，包括购物商场,观察人们在什么时候会笑,并写下让他们笑的原因。

耶鲁公开课 - 心理学导论课程节选

People observe the New Year's holiday in many different ways.

VOA: special.2009.01.01

In terms of consumer behavior all we need do is observe how people are using their smartphones and tablets paying with Square Wallet, their Starbucks (SBUX) app, or checking their bank and trading accounts, paying bills and reviewing sensitive work documents.

FORBES: Securing The Future of Apple's iPhones and iPads

People observe a queue because they know what behaviour is expected of them to maintain order.

BBC: Who, what, why: How to get off a busy train

They observe that some people suddenly become rich, while others remain poor.

FORBES: Have Health Insurance, Will Save Less