They wear colorful things on their ear lobes.

他们在耳垂上佩戴色彩鲜艳的饰品。

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And the establishment of ear Care Day is to appeal people to pay attention on their ear health.

全国爱耳日的建立就是为了呼吁大家关注耳朵健康。

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"They'll grab their chin or pull on their ear," Moser says. "Those are cues that maybe I should be doing something to get them to their room quick or make them feel comfortable."

Moser说，“顾客不断地抓自己的皮肤或者拉自己的耳朵，这些都是信号，或许意味着我需要做些什么让他们尽快到达自己的房间或者是做些什么让顾客感到舒服的。”

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The not-very-subtle threat is that if they back Tsipras, they will be out on their ear.

CNN: What if Greece can't manage payback?

But instead, all they have to do is, like, tug on their ear and suddenly a vote goes down.

WHITEHOUSE: Press Briefing

Then headphones were placed on anthropometrically correct mannequins that had microphones inserted into their ear canals.

WSJ: Studio Sound to Go | App Happy