What are the precautions for freshmen to visit job fairs?

I think so. First of all, when you go to the job fair, you should feel the atmosphere of looking for a job, which will give you a shot in the arm for your study and struggle in the university. Then you can see what enterprises you should look for in your major, and what the requirements of those enterprises are, so that you will know how to struggle in college in the future. You can also observe the development of enterprises related to your major, so that you can be more clear about which better major you should choose when considering changing your major. That's all, the landlord can ask anything else.