What selections do you play when showing off your system to others?

Muddy Waters “Folksinger”

I ask them what they would like to hear and I play that. Easy to do with streaming, odds are it will have what they want. It is absolutely pointless to play them something they don't care for even if to your ears it is the best sounding record ever. Lesson learned.

My system is for my enjoyment - if someone's interested in music I will invite them to be the dj and listen with me.  

to name a few: 

John Denver, Rocky Mountain High

S&G, Bridge Over Troubled Water

Fleetwood Mac, Over My Head and I'm So Afraid

George Michael and Elton John duet live: Don't Let The Sun Go Down on Me

Metallica, Wherever I May Roam

Rubenstein, Chopin Nocturnes

@wolf_garcia  "Nobody who doesn't already care about great audio really cares about how cool you think your stereo is. They simply do not give a damn generally, and may say something complimentary to be nice...kind of like "Nice train set," or "Nice tiny doll house furniture collection," or "Stamps...How cool!""

That's a bit of a cynical stance.  

Actually, I've made converts... some people who thought they didn't care, or hadn't ever really thought about it, have really come around very quickly to the concept of excellent stereo once they listened to some music through my system... even casual acquaintances who have attended my poker nights have taken notice and actually asked about my system, and that's just w a Pandora stream playing quietly in the background.  Neophytes ears can indeed be opened.

Some people have never really been aware of what a difference even a relatively modest carefully selected stereo system can make to music enjoyment.  Once they hear it for themselves, they can turn towards it very quickly.  Just today I was mentoring someone who approached me for advice about putting together a good budget system; his interest was piqued by what he had heard casually through my own modest system...