What sled14 said. Have a small plan of attack for each airline and spend a little time before hand digging up a few things on each company. Many recruiters will be writing all over your resume after you leave giving a thumbs up or down. Each airline has a different process, but most who attend feel it's worth while.
Come stop by our booth at WIA before you speak with the recruiters. We will be happy to assist if you have any questions or need your resume and cover letter looked at, or changed if applicable.
Enjoy the conference.
Centerline