How should I wear my hair if I am wearing an off the shoulder black dress to my friends wedding?

I have long hair (mid back) brown with carmel highlights. The wedding is very casual. My dress is black, off the shoulder (victoria secret) its almost a beach cover up but it looks dressy. Im wearing embellished flats that are a gold color and Im going to accent that with gold jewlery. But I am stuck on my hair, what should I do?? (please include pics if you can, TX)