Grow your hair long, or grow awesome facial hair.
Long hair, don't care! It's the subtle middle finger that won't get your ass beat. At least once in your life you should grow your hair out to the max, until your flowing mane of glory or bountiful 'fro is turning heads and getting looks. Or, sculpt some insane facial hair that's outrageous enough to be an obvious conversation piece. Because once you're old and working for The Man, these forms of expression won't be allowed under the Corporate Rules and Regulations, Chapter 7, Section VI, Line 9.