Whenever possible, arrive as early as possible to the career/job fair. You want to talk to the recruiters while they are still fresh and eager to meet candidates. As the day wears on, everybody gets tired.

Once you arrive at the fair venue, sign-in, and grab (or create) your nametag. Do you know where to place the tag? If you said your right lapel, give yourself a gold networking star; nametags get placed on your right -- not your left -- so as you extend your arm for a handshake, the person can easily glance up your arm to your nametag. Works like a charm.

Finally, take a deep breath, calm your nerves, and scan the venue -- or a map of the venue -- to find the key organizations you want to talk with first.