Jump with two feet, which literally means jump with two feet. Here represents a person whose emotions are easily exposed, and he will directly show his good feelings and bad feelings towards you. If he is not satisfied with you, he will even jump with his feet. When dealing with such a person, you don't have to worry that he will set you up. All his joys and sorrows are written on his face, and he won't do anything to hurt you behind his back.
Fat smile, this is a fake smile, that is, a smile on the surface, with a gentle attitude, always accompanied by a smile in the process of dealing with you. But did you piss him off? You don't know it yourself, but he hides the knife in a smile. His deep dissatisfaction with you is hidden in his heart.
If there is an opportunity one day, I will secretly hurt you and even betray you, but you still believe him! The terrible thing about this kind of person is that the ideas in his mind are hidden too deep. When dealing with people, he won't say what he thinks, but he will be hypocritical and quietly, and he will turn back at any time.
Because of the above two situations, there is a saying that "it is better to jump with both feet than to laugh fat". Old people will use this vivid rhyming proverb to warn the younger generation how to be a man. If they don't know each other, they can't talk to others directly. Don't be fooled by the apparent kindness of some people. You'd rather argue with others, than be secretly remembered by a villain and calculated behind his back. This is the same as preferring to be the red face of a gentleman rather than laughing with a villain.