Let's see. The first day you register, and then they have the big name author speak at a combined opening meeting. In the middle of the day you break for lunch, and after lunch before the classes start they have the booksignings. Otherwise, the entire time is composed of classes--good, informative, organized classes with one or two people presenting them. They tend to have a class for writers, one for librarians, one for illustrators, etc. in the same hour. Oh, and the visiting editor always seems to have a class/question and answer session in the two-day period. So you pick what class looks of interest to you and you go to it. Each hour I always found at least one class I wanted, often two, and would split up with my friends and they'd take notes in one and I'd take notes in the other. So, yeah, you go to classes most of the time. Then it all ends around 4. And you have to make an effort to network in between, if you want to.
Something new they are doing this year is having a critique group on Thursday night. Read this
link and look under "Peer Critique Group" to get the details. This is new so I have no idea how effective it is. I'll probably check it out, though.