Roll a Ball

Eva was playing with a ball and as it would get away from her I would roll it back to her.  At one point she grabbed the ball swang her arm back and forth as if to gain momentum and then... RELEASE!  She would let go and roll the ball a foot or two!  So cute, she repeated it several times.  Sometimes she will do something and not do it again.  More and more she does a new thing and repeats it.