1. Know who will attend the job fair. Make a company list yourself. Know their table number. Just like

  First choice:

  Second choice:

  When you stand at their booth, you know what they are doing, ask opening. Give first good impression.

2. Have at least 15 resume, send them out.Plan to have 2-3 hours.

3. Don't grab too many gifts, nobody like people have a plastic bag which fulled of free gifts

My experience is: if you did pretty good during career fair, company will invite you to attend first round interview after you talk with them( ordinarily second day in campus)

Wear suit,bring portfolio to put your resume, shine your shoes. Good luck