Over at Walking Paper, Aaron Schmidt has started a great conversation on how to give a good presentation.  Pete Bromberg (aka moi) has added his perspective over at the Library Garden blog.  Brenda Hough also weighs in on her blog, Librarians with Class (great blog name!)

So CLENIACS, what are your tips, best practices, double-secret tricks, etc. that you rely on to give kick-ass presentations?