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.