Being polite means keeping saying "Hello, how are you doing?" to anyone you run into anywhere — in the hallway, in the restroom or on the street.

这意味着随时随地——不管是在楼道里，还是在洗手间，还是在路上，不断对人说：“你好，怎么样呀？”

youdao

Hello, long time no see. How are you doing?

你好，好久不见。你怎么样？

youdao

Laura? Hello! It's great to hear from you! How are you doing?

劳拉？你好！接到你的电话我很开心。你好吗？

youdao

Sergeant GILBERT ROSA (Recruiter, U.S. Army): (On the telephone) Hello, how are you doing, ma'am?

NPR: Army Recruiting Gap May Force Compromises