Certain personality traits are correlated with enjoying or being perceived to be good at "us"-type (adopting the same use of "us" as you) activities and analysis, and anti-correlated with enjoying or being perceived to be good at politics-type activities and analysis? (This may just be a more general and less useful formulation of some of Jiro's suggestions.)
Has no one else mentioned this on LW yet?
Elizabeth Edwards has been elected as a New Hampshire State Rep, self-identifies as a Rationalist and explicitly mentions Less Wrong in her first post-election blog post.
Sorry if this is a repost