I really enjoy performing. You get such a kick out of acting or dancing or singing in front of a group of people. It's the thrill you obtain from appearing on stage that I adore. The excited nerves that build up beforehand as you hear the bustling of an audience arriving, the absolute concentration on the stage and you and your fellow performers as you stand vulnerable before the crowd, and finally, the relief and elation you feel once you have finished all contribute to the wonderful atmosphere created from a performance.
A smile is planted on your face for a good few minutes after a show, not because you are grateful it has ended, but because "YOU DID IT!" and it was amazing, and the crowd loved it. You feel as if you want to scream and shout and jump up and down with joy. Embracing everyone in your sight to express how wonderful it was to them, jumping frantically round in an awkward hug both participants squealing loudly is an experience I frequently come across. You feel so unbelievably happy, and I think that's fantastic. That from just doing one tiny thing in front of a group of people you become completely besides oneself with joy.
Of course, performing isn't for everyone and may inject absolute terror into some it is, however, a wonderful way of expressing oneself to a crowd of people through any means of art. You could be playing the recorder, or be at the back of the stage in a bit part for all I care, I believe that this fabulous feeling is felt by everyone and anyone who performs. And I love it.