I am very happy to answer this question for you. After seeing your description of this problem, my personal views and suggestions for you are as follows: First of all, you have to debut when someone says that you look similar to someone else. How should I reply to him? I saw your description of this problem. Then I think you can reply to him in two ways. The first way is that you can ask him. How does that person look like me? Well, we are the same height. Is it the same as fat or thin? Then just ask him this question. Then there is the second reply. You can tell him yes. Is that my brother of the opposite sex? Where did you meet? On what day, let us get to know each other. Let's go like this. It’s okay to say that