The judges, along with contest MC Barry Palmer and friends, played a set of music each day-- after all, since we were judging the contest, we needed to show that we could play! Our Saturday set went real well (no surprise, since the five people on stage probably had 150 or 200 years of professional musical experience between them), and afterwards I was talking with Chuck Nation, another of the judges, about how much fun our set was. Chuck expresses himself very well, and he commented about playing in a band: "The difference between amateurs and professionals, is that amateurs are competing with each other, and professionals are helping each other." Well said!
I've talked about it before on this blog, but Chuck's comment really put it down plainly where we can understand it. If you're playing in a group-- on stage or off-- are you listening? Are you trying every second to help the BAND (not just yourself) sound as good as possible? Are you playing so as to support the other musicians, not just to make yourself sound good? Your level of proficiency doesn't matter, and plenty of people who can play well don't play in a professional manner, in this respect!
You may be an amateur player, but you can play in a professional way. Think about it.