Swinging.

When I was about 9, I learned how to play softball. The most difficult concept for me to grip was how to swing the bat and how to stand when swinging the bat. I would sit in the audience and watch other softball players and noticed most had their own signature. Some would spit and wiggle their foot before they swung and others would twirl the bat around behind them. I was fascinated with the "signature" that the girls would use. Since then, when I went to bat I would squint my eyes, twirl my bat behind my head, and swing.