Well I'm a player, not a singer, but summat here applies. I didn't play in front of anyone until I was 42 (a couple of decades ago at least - don't ask...) It took a lot of balls at that age to do it at all, and I realise now, buttocks clenched, how bloody useless I was then. But I'm here now and I'm, er, welcomed wherever I show up to play these days - and no-one actually told me how crap I was all those years ago. Instead, I received a lot of encouragement. Whether that was because those who encouraged me saw that I had something going for me, I'll never know. Watch this person with patience for a little while and provide a modicum of encouragement and good advice (don't get too effusive, mind...). After a few sessions you'll find out one way or the other how they are probably going to develop/not. But do note Jack's dose of realism.