If you need help ...ask me!

Maybe you can either sort of French braid your hair back at the sides (sort of, because I don't know how to French braid, but I've winged it before along the sides and/or top of bobbed or shaggy shortish hair before), or just twist it along the edges, pinning it in place as you go (use lots of hairpins to get it secure). When you reach the back, you may be able to twist and pin it into something resembling a tiny bun at the nape or a little above. I've never tried the little bun with a bob, but it works with slightly overgrown short hair (like me being lazy about cuts for three or four months :-P ), so it might work all right with a bob, too.
If that doesn't work, ask your dance teacher what's an acceptable way to pin your hair up if it's not long enough to make a bun.

Hi lori

I could use some advise about my hair and what I want to do is I want a really different looking hair cut than some of my friends that I hang out with because most of girls have either long or shoulder length hair and what I want to get done is really different compared to my friends hair style`s and what I want to get done is a inverted bob hair cut with a buzzed nape so do you think I should go for this hair cut or not? oh one more thing my hair length is shoulder blade and my face shape is oval and thanks I hope you can help me out.

Jennifer