Today I took my 2 year old out on a softball field by our house, set up her tee ball set on home plate, and let her take a few swings. I taught her to run to first base after she hits the ball, and even to point to the sky after she stands on the first base bag, just like an MLB player.
She calls first base "the book" because the field has one of those double first bases that, to her, looks like an open book.
I have to say, I started hearing crowd chants in my head when I stepped on that field.