Update your resume and keep a copy with you.
Search for the companies that will be there and for their open positions.
Prepare your elevator pitch (who you are, what you do, what you’re looking for, what you can bring to the firm).
Anticipate the answers to the questions you might be asked (availability, career plan, motivations…).
Opt for a professional but comfortable outfit.
Wear your best smile and now you’re good to go!