With a little practice and encouragement you can evolve as a performer who projects his or her ideas. The first is the existential, which is considering what the piece means to you. The second step is the psychological, which is considering the composer's motives for writing it. The third is the semiological, which is determining how you will perform the work so that others can perceive its meaning. We communicate when we perform.
Art is the creation of symbolic forms.
The antics do not make the clown, it is when he or she reveals some truth about him or herself. It's not instinct. When you were born you couldn't even walk. Music and theater were given birth by the same muse. You must divest your body, it must in effect cease to exist.