The same way you pick up girls: become Richard Feynman. http://xkcd.com/182/ http://xkcd.com/182/ More seriously, I find that when I think I can't explain some

The same way you pick up girls: become Richard Feynman. http://xkcd.com/182/ http://xkcd.com/182/ More seriously, I find that when I think I can't explain something I know to someone in simple-enough terms it is because I'm underestimating the audience. Explaining things slowly without resorting to undefined jargon usually does the trick.