He is very polite to people.

他对人很客气。

《新英汉大辞典》

You should be more polite to ladies.

你对女士们要更有礼貌一点。

youdao

It is not polite to interrupt when someone is talking.

打断别人说话是不礼貌的。

youdao

She invited Edward. - To be polite, that's it.- I think it's nice she invited him.

VOA: standard.other

to make a question a little bit more polite, a little bit softer.

这样可以让整个句子显得更有礼貌，也更为温和。

I'd like 课堂 - SpeakingMax英语口语达人

to talk about subjects that are polite.

来礼貌地谈论一个话题。

I'd better 课堂 - SpeakingMax英语口语达人

On Tuesday, they ranged from the polite to the profane, the humorous to the hateful.

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Friends of mine who have worked in food service are great tippers who are polite to waitstaff.

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Yet I trust Chirchir, who is polite to a fault, with money more than my Kikuyu brothers.

CNN: In the Field