How should I do my hair for my graduation dance?

For my graduation dance, I'm wearing a strapless black dress. I don't know what to do with my hair...should I simply curl it and leave it down? Or should I put it up? Twist it into a chignon? A braided updo? Messy bun? I really don't know. My shoes and dress are kind of fall/wintery so I want a fun, youthful hairstyle. The problem is...I don't know what to do. Any suggestions with pictures would be great! Thank you! :)