[speaker001:] Do I have to talk to the interviewer or just leave my application?
[speaker002:] You should communicate with the interviewer whose company you are interested in, and make a good impression on him or her. In that case, your chance of success will be greater.
[speaker001:] What should I do in the fair?
[speaker002:] You should take a look at all the companies, choose your favorite ones, go over to talk with the interviewer and leave your resume in the end.