Now most of the time... we sing. In the car while driving, in the showers, I mean people just sing.
I know dudes in my dormitory that bang out opera in the showers. xD Personally I like to turn up BeeGees in my truck while driving and just let the world have it.
"Tradgedy! When the feelin's gone and you can't hold on it's tradgedy!" (:
But yeah, if you sing. Where is your preferable spot? Showers? Car?? ;D