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Digital cameras are amazing because of the immediate feedback you get after taking a photo. You can make changes to the exposure and white balance and see the results on the LCD Monitor to instantly tell if you got the shot you wanted.
Your camera, out of the box, will have a very short review time—that is, when you take a photo and it shows up on the LCD Monitor you will only see it for a few seconds. I like shots to stay on until I decide to keep shooting or turn off the camera, so I have it set to the Hold setting. This setting allows you to review the image you photographed for as long as you like (lightly pressing the shutter will get you back into shooting mode and turn off the LCD Monitor). Note that this option will drain your batteries faster than the default setting.