5) Whites: A step above highlights. The Whites slider only affects the highest spectrum of light colors, meaning you can affect only the brightest portions of your picture.
6) Blacks: The most true-to-name slider of the bunch. This only affects the blacks in your image. This is a good place to experiment adding some black if there isn’t any in your photo. Creating some black can add a greater richness and depth.
7) Clarity: The clarity slider manipulates the detail contrast in an image by affecting the different textures. This is different from the color based Contrast option previously, so have fun experimenting.
8) Saturation: The Saturation slider adjusts all colors in your image equally. Be careful using this tool as adjusting everything together can make already colorful sections of the image overpowering or unbelievable.
9) Vibrance: This tool only affects the areas of an image which are not very colorful to begin with. This is a great tool to make all the colors in your images pop out without making the photo look unbalanced.
After playing with these settings, you can cancel the changes, save, continue working in Photoshop to further into detailed work. Take the time to study these simple sliders and set yourself up for creating great photos.