Organizers advise potential jobseekers to visit every employer at the event and tell them exactly what type of career you're interested in. If they don't have it available, they may be able to refer you to another company with similar opportunities.
JobNewsUSA recommends that you:
Research the companies you are most interested in beforehand
Bring at least 25 copies of your updated resume
Ask the hiring manager at each booth for a business card with contact information
Make babysitting arrangements, as children will NOT be allowed in the career fair