A line drive or a pop-up, even in youth leagues, has some serious power behind it. Don't get so wrapped up in your shots that you don't have time to react to protect yourself or your camera. Reviewing shots for exposure and timing is one of the great advantages of digital, but do not get so engrossed in the shots you've just taken to possibly miss a great jubilation or dejection moment after the play, or worse, not be paying attention as the next batter drives a foul right in your direction. Never argue an umpire's call, even if you think you've got proof it was wrong -- that's not your job, and it is a good way to get yourself ejected from the field. Pay attention for little moments and interesting off-action images, such as players in the dugout watching anxiously during a rally, celebrating a home run, or looking downhearted as the long ball is caught deep in center field. Don't be afraid to experiment and try your own angles and impress your own style on the game: give a Lensbaby a shot to add a funky twist to your action shots. Slow down the shutter and stop down the aperture to try some panning as a baserunner rounds the bases. Try framing both the batter and pitcher from position 2 and try to focus on the ball, halfway between the two.