Pre-register and research
If you want to be successful at a job fair, you need to thoroughly research about the event. Searching about the fair beforehand will allow you to know which companies are offering permanent jobs and what growth opportunities exist. Research will prevent you from wasting time on companies which are not too serious about recruiting.
Some job fairs give you the option to pre-register. You may do that by submitting your resume beforehand.
Bring lots of resumes
Keep in mind that you will have to drop your resumes at the booths of a number of companies. Therefore, it is imperative that you bring lots of resumes with you in a job fair. Before the event, you must ensure that your resume is complete and up to date. Make a nice presentable resume. Keep it as concise as possible and refrain from giving unnecessary details.
For a job fair, you must dress up formally. Keep in mind that your appearance has a massive impact on your personality. If you are presentable and appealing, you are likely to leave a good impression on the interviewer.
Many companies will conduct a short interview on the spot just to quickly analyse your skill level. You must remain confident and practice giving interviews before the event, which should help you get into the rhythm.
If you wish to be successful in a job fair, it is strongly recommended that you follow up on your job applications.