What good have you brought the world with the music you make with your acoustic guitar?

I'm just now learning how to play and one of these days, when I'm capable, I'd like to play for folk in nursing homes and hospitals. I know music calms the savage soul...
I don't play acoustic guitar often, but one of my friends is trying to set up something like this to happen. I figure if I just arpeggiate a lot of suspended, major, and 6 chords, it should feel fairly soothing. Of course if I do this, I'm going to try to learn a little more before I do it and come up with something before hand.