give it a shot

Another phrase " give it a shot" is an idiom, which means "attempt to do something".

Sit on one's hand

This weekend, I watched one movie called "Pride and Glory" by Colin Farrell. There's one sentence "don't sit on your hands here" I don't know. After looking up in the dictionary, I understood it means "fail to act". I think this would be one useful phrase.

How to change field color in excel automatically by value

Choose Format -> Conditional Formatting in excel,