You said: teacher, I can do Chinese, such as XXX, XXX, which is very safe, because the interviewer can't ask you to do it now. But it should be noted that you should think about how your talent can help your teaching. The other thing is to find some recipes and remember some technical terms for side dishes.
You can also say: Teacher, I can play the guzheng, but because I'm from XX, it's not convenient to carry it, but I brought photos of my previous study of guzheng and put them in my pocket to give me extra points. However, it should be noted that it is best to print the photos in clear color.
You can also say: Teacher, I can seal cutting. This is my previous seal cutting work. Let me show you (remember to bring more than one, or the other teachers will be stunned, haha). In the future, when I take up a teaching post, I can also give full play to this specialty and print their names for each of my students.