For the most part, everyone behaved themselves, and most people were very civil about their reactions. So, pat yourselves on the back for that, congoers!
But notice how I said "for the most part." There WERE several moments I observed wherein congoers were a little too..."in the moment," I suppose, to realize what they were doing may have been less than reputable. Let me just ease into my rocking chair, undo some of this tactical gear, and try to list what I thought some congoers need to improve on.
Running
Yes, let's just start right there. Zenkaikon's floor space, I feel, is about the size of the entire gaming room at Otakon (and I only compare it to Otakon because that's all I've got to go on), so it's not like it takes more than 5 minutes to get anywhere. So, there's no need to run, at all.
If you see someone cosplaying as a character you adore/obsess over, don't run to them - that only sets off warning bells in their heads (think about what THEY see), and you scare 'em away, and you keep running to chase 'em, and basically in the end everyone is winded for no good reason.
Additionally, you could run into someone exiting a panel or knock something over (if you've got props of your own, for example).
Like I said, Zenkaikon's small enough to navigate in less than 5 minutes. If you see a cosplayer you want to approach, walk up to them. If they get away before you get to them, just wait for them to come around again. It's not like we DON'T want you to take pictures or comment on our cosplay, it's just that maybe we have matters to attend to.
Screaming
This, I suppose, goes hand in hand with the previous point. Please don't scream from across the con to catch our attention. Much like running, it sets off "uh-ohs" in people's heads. You also disturb people who are relaxing or trying to listen to a conversation/panel.
Instead, make sure you are within reasonable earshot of the person you want to talk to.
General physical behavior
I saw several things which just made me go "you can't be seriously doing that here." It seemed to be like it was always the same one or two groups doing it, but I won't name names, just examples.
Play-fighting is a big no-no. You shouldn't EVER suddenly have an impromptu sparring match or sword fight. Especially near the photography setup in the main hallway. You might think it's super-special-awesome to have a swordfight with bokken, the photographer on the other hand may just have a stroke when you start waving it around so close to their lights. It doesn't matter if it's a bunch of people you know, or it's someone who consented to it.
Never ever touch someone without their permission. Not worth the risk as you could either injure them or their property (clothes, props, etc.). On the other hand you might cause them to overreact (like, say, if you glomp/jump on them without warning/from behind) and end up hurting you.
This is especially true if you're a cosplayer and you see your character's rival/love interest(canon or otherwise). You might be "in character" and jump on Sasuke as Orochimaru, but that Sasuke you've got in your sights might not be in the mood for that.
Don't tug on parts of people's cosplay, either. They put a lot of work into putting these things together and know how to handle it best. Don't tug on Cloud's hair to see if it's real or not, just ask.
Obstructing traffic flow is another thing you shouldn't do. The Scanticon's hallways, as you've noticed, aren't the widest things in the universe, so every little piece of real estate that will let people move around you is worth ts weight in gold. If you're tired and want to sit down, find a chair, or some place where there's not a whole lot of people moving around. If you MUST sit somewhere where there is a lot of foot traffic (say, waiting in line), try to make yourself as small and unimpeding as possible.
If you're fooling around, again, do not do it somewhere where you'll block traffic. If you want to drag a friend around by their ankles, don't do it in a high traffic area. If you want to re-enact your character's death scene, or if you want to pretend to be dead DON'T DO IT IN A HIGH TRAFFIC AREA.
Watch where you point that thing!This wasn't as big a problem as the others I've mentioned, but if you have a prop or a cosplay that has things sticking out you need to be aware of where it's sticking out, exactly. If you don't, it could lead to anything from snagging on something (which could lead to destroying the prop/cosplay itself) to hitting someone unintentionally. Undersiable outcomes.
Panel Behavior
Okay, this is only really (in my experience anyway) in regards to the Whose Line panel. Now, on TV it definitely looks like you can just call out your suggestion, but in our situation it doesn't quite work. I think next time (hopefully there's a next time, that was fun and has potential) we should raise our hands; at least be considerate of other people - if someone beats you to calling something out, don't try to drown them out by raising your voice. Wait til they're done talking, at the very least.
...aaand I think that's it. Just some stuff to keep in mind, for next con. A lot of it's covered in the rules, but having examples might make it more clear to you.
Oh, and I apologize if I overstepped my boundaries a couple of times by yelling at other congoers for doing something that I didn't feel was safe. I know I'm not supposed to play supercop.