Pay attention to dress neatly, don't make indecent moves, say as little as possible what you shouldn't say, and propose a toast when it's time to propose a toast. It's best to go over and give each other a drink and add it yourself. Say a few words of blessing and clink your glass a little lower than the other's. Let's do this first. If necessary, it is best to propose a toast one by one. Of course, you can't go up and say that you want to propose a toast. You have to wait for someone with high status to propose a toast.