I tend to play guitar whenever there is one near me. I'm still not that great at it but I've been teaching myself for the past two years. I really enjoy it and you can get lost in it while you're playing. I'll be in my own world and I can't hear anyone else around me. It's a really fantastic feeling.
Anyway, I'm not really singing just sort of spewing out sounds while playing guitar. I do that a lot even though my voice isn't that great. I sped this up to change the sound of it. If I didn't it would probably sound pretty awful. :P