If you want to become a positive person, you should start by keeping a positive demeanor. And the first step in doing that is to smile.

如果你想成为一个积极的人，那就开始保持一个积极的行为吧，第一步你需要做的就是露出笑容。

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The birds, and a broader upgrade of the area, have had a positive impact on the demeanor of customers, she says.

WSJ: A California City Is Into Tweeting��Chirping, Actually��in a Big Way

Instead, I thought I should project a positive, sunny demeanor and rally the unburdened troops to victory.

FORBES: CEOs Should Tell It Like It Is