A simple smile, a gentle wave, or a cheery 'Hi' or 'Hello' is all that's required.

微微一笑，轻轻挥手告别，或者愉快地对别人说“你好”都是必需的。

youdao

Look for opportunities to create 'magic moments' - from a simple smile or joke to a random act of kindness or just' being there 'for people, these things make a huge difference to those around you.

寻找身边的机会去创造“美好奇妙的瞬间”—可以是一个简单的微笑，一个轻松的小玩笑，一个善意的举动，亦或是真诚的陪伴，这些都会给你身边的人带来巨大的不同。

youdao

Researchersfound that a simple smile causes men to find women more beautiful.

研究人员发现，一个简单的微笑就会让男人觉得女人更美。

youdao

She has a nurse's warm smile and simple manner, sympathizing with patients who struggle with their diets or medicine.

FORBES: Nurse Hoffa

The organizing principle of Rian Johnson's " Brick " is genially simple, and clever enough to make you smile before you've seen the movie.

WSJ: 'Ice Age' Is Slick, but Plot Is Perilously Thin