There are great differences in living habits and cultures between China and South Korea, so there are many "unspeakable things" in life. For example, people in China and South Korea attach great importance to face. So, if you want to refuse a Korean, please find a more tactful way to refuse. A small "no" can cause great embarrassment. Also, Korean drinking culture is more complicated than China's, such as the etiquette of pouring wine. On the wine table, you can't pour your own wine, which not only shows that the people next to you are rude, but also shows that you are not respected and lose face. So when you invite Koreans to dinner, you must take care of this. And the posture of pouring wine is also very particular, and the left hand is holding the arm of the right hand, which is polite enough.