Y'know, saying stuff like "I'm gonna head home guys, thanks for tonight" or even simpler ones like "See you later". It's relevant because people expect you to say those kind of things when leaving social gatherings, but because people expect you to say them, it actually puts more pressure for some PWS (or me, at least) and as a result, it turns out into some *really* awkward goodbyes because you stutter badly on what should be a simple phrase, or you just end up avoiding it altogether.