out of politeness

常见例句

People often ask about health out of politeness. This is a very common way to begin a conversation.
人们常常出于礼貌问候健康。这是开始交谈时常说的话题。
I don't understand how a woman can leave the house without fixing herself up a little if only out of politeness.
我无法理解，一个女人怎么能够不稍微打扮一下就出门——哪怕是出于礼貌。
leviban.blog.163.com
For one thing, when the Chinese ask, out of politeness, for "guidance", they will be less prone to rush into offering advice.
谦虚一点，去到中国，人家客客气气地请我们“指点”，我们就不会动不动对人家“指指点点”。