At the school job fair, the interviewer asked me to go to the company to have a look. I'm going to have a look tomorrow. What should I prepare tomorrow? What can I do to keep me here?

Be sure to know the specific development process of this company in advance, otherwise people will ask you how much you know about us, and then be familiar with the position you are applying for, that is, your professional knowledge should be excellent. Be careful not to be late. It's best to dress formally, smile politely, and bring your resume and all kinds of supporting materials. It would be better if there is a recommendation from the teacher in the school.