What do you do when you feel happy? I am talking on auto=pilot. YOu do not think about doing it. Your body just acts a certain way and everyone knows you are feeling happy!
I discovered a new habit I created to add to the few I aready do when I feel happy. It comes in real handy when I am in a small area without instruments and cannot really sing loudly.
I challenge you to create your own version because I have a surprise for you when you share your own piece.