For one thing, it depends if you are in a professional environment (work) or an informal environment (just with friends). Be creative and find what looks best through trial and error. I have short hair, and I don't do anything to it, and it looks fine. You could spike it up with gel, or put pig tails in it. I don't really care about fashion. If people don't like the way I look, it's their problem. It's worked out so far.