Words I should know, but don't.

raconteur: a person who is skilled in relating stories and anecdotes interestingly
prevaricator: a person who speaks so as to avoid the precise truth; quibbler; equivocator
supplant: to take the place of (another), as through force, scheming, strategy, or the like
finagle: to obtain or achieve by indirect, usually deceitful methods
winnow: to subject to some process of separating or distinguishing; analyze critically; sift