I will be meeting a lot of new people that I have only previously talked to over Xbox LIVE, Facebook, or Twitter. This is pretty common for events like PAX East. Here are some tips to make meeting in person less awkward.
1) A week or two before meeting the people from the Intertubes, set your Avatar as a picture of yourself. If we agreed to meet at a certain place at a designated time it might help if I know what you look like.
2) Introduce yourself as either [Twitter/Gamertag] followed by your real name or vice versa. To be honest, if I’ve been talking to you for weeks as your alias, I wont remember your real name and may continue to call you the alias in real life.
3) Have a pen handy to write your Twitter handle or Gamertag on your business card if it isn’t already printed on it. If I’m going through a 100+ cards post-PAX I will get to yours and go “Who is this?” and assume it was a random card that was thrown at me at a late night mixer.
I fall into this category with you so I’m ready for the picture, but I only take naked pictures. That’s how I roll!
Just reading this blog entry has me so hungry to attend a PAX event. *sigh*
Like your pointers you’ve got here.
4. You forgot to mention, people meeting you should not bug and pester you for Zilla Club pins
They need to be earned. 
Have good fun and enjoy yourself Zilla!
I will be at your panel next weekend and it appears that I’m attending many of the panels you are. If our paths cross, I’ll have to thank you for all this advice; it may be my greatest aid in acting like a normal human bean at my first convention. Thanks!
I love #1. I’ve even gone so far as to ensure that every shirt I took to PAX was red because my twitter avatar had me in a red shirt.
Ha, I think even at E3 last year you were wearing that red “Carmine must die!” shirt.