During rehearsel i jump around and make fun try to play in the dark etc. But on stage I'm static, not extremely nervous but i think sometimes a little overconcentrated. During singing I can close my eyes but not when I'm playing guitar. After the show everybody is enthousiastic, but only after a few days and hearing back the show i can see the show in perspective and looking forward to the other.
For me it's very good to record it all and hear myself again so I can hear myself playing not so bad as if I thought I did. Sometimes I get a little tired of myself for being to critical.
It's all experience and time I guess.