I prefer the ‘face shape-designed’ compatible hair styles, hair styles would also have to be compatible with your attires, or occasion attire to bring about aesthetic impression but if you ask hair styles regarding personalities then I would say:
– Curly short hair, split pony, round style: Cheerful and playful.
– Straight short hair, flat pony, ear limit style: Serious and calm.
– Wavy long hair, long split pony: Romantic and compassionate.
– African/gang-bang (don’t know what to name it) short hair, tight to behind: Brave and sassy.
– Straight long hair, one way pony: Shy and kind.
– Curly long hair, free pony, tight to behind: Bookworm and smart.
– Wavy medium-length hair, one way pony, un-tight: Sophisticated and charismatic.
– Straight medium-length hair, one way pony, tight in half: Naive and childish.
(That is it for now…).