Style for me is some one who figures out who they are. What works on them. What they feel good in and develops that. Develops their character. And the outer expression of their character is what is style.
My grandmother was probably the first person who I thought was beautiful. She was incredibly stylish, she had big hair, big cars. I was probably 3 years old, but she was like a cartoon character. She'd swoop into our lives with presents and boxes, and she always smelled great and looked great.
When you write a character and their dialogue, you can't help imagining how you would be acting if you were them. You kind of have to relate to all of them. It's the most personal thing I've ever done.