Basically be yourself, don't let any arrogance get you down. Don't be shy, these guys are nerds after all so actually being outside might explain them being shy/arrogant. However, you'll be there with different folk than me. In regards to the OC'ing part, it'll be a group effort so make sure the people you're with all get a say. I had this one lad who kept fucking around on his own and pretty much excluded everyone else until I lost my rag a little and told him off. Felt like a right cunt but it cleared the awkward silence in the group & it got us all talking.
Oh yeah, I got there relatively late (even though I arrived early) as I was meeting someone else who had won and I missed out on food. I was freakin' pissed off about that. So make sure you get there and get a good seat and fill y'fuckin' face!
Most important thing is to have fun and win a good prize. I won a Mars GTX285 which I sold here on TPU as I needed the money to go towards my flat.
http://images.bit-tech.net/content_images/2009/09/asus-xtreme-global-summit-report/axgs1.jpg
See you guys can find me.