How should you wear crew socks with athletic shoes?

What is the proper way to wear crew socks with sport shoes? (And why do “they” call them crew socks anyway?)
Should you wear them fully extended, that is half way up the calf, folded down neatly once or twice or just pushed down in a bunch?

I realize this is an odd, non-political question so if you feel you must, please go ahead and contrast and compare the different ways that liberals, conservatives, libertarians, green party people, socialists and tea party’ers all wear theirs.