I use Twitter when I feel it’s appropriate my friends know what I’m doing. When I’m playing a video game on my XBox 360 chances are it’s a multiplayer game and I might enjoy some company.
A few months ago Internet Duct Tape posted an article with several methods on how to obtain your XBox 360 activity. I subscribed to their Yahoo Pipe for my gamertag. I never really came up with any good way to use this but I finally have. My XBox 360 activity (game activity only) now automatically updates my Twitter account.