High-status behaviors: [...] Speaking authoritatively, with certainty.
Wow. That explains a few things.
Argument by sounding good. It's argument from authority with oneself as the authority. This can be a trap if you're good at it, i.e. believing yourself more than is epistemically warranted.
I can't remember how I found this, just that I was amazed at how rational and near-mode it is on a topic where most of the information one usually encounters is hopelessly far.
LessWrong wiki link on the same topic: http://wiki.lesswrong.com/wiki/Status
Source: http://greenlightwiki.com/improv/Status
Retrieved 20 March 2012