What should you do if someone calls me Lao Zi in front of you?

If someone calls you that in front of you, there are two situations. The first is that your good friend tells you it's a joke, and it doesn't matter. The other is that this person looks down on you and wants to show off his prestige in front of you, so he calls you that. It cannot be said that there are many such villains in real life. As you don't have to care about these things, the easiest thing is to ignore him and ignore him forever. Or if you feel uncomfortable, you can return it to him coldly, and then. Do what you have to do. If you do this, he will know that he is boring.