Be Precise. Be Detailed. Be Unique.
Breathe life into your writing, give your subjects distinctiveness, and say it all in an original way.
Don't just write: "The man had light brown hair." Occasionally, write something along the lines of: "The man had thin, limp hair the color of spicy brown mustard, parted in the middle, and matted down like day-old spaghetti."
Get the idea?