They should put that on the package!! "Make sure the grooved side of the bobby pin is facing down, against the skin. The ribbing is designed to grip hair and lock it in place, and you will capture more hair with the pin in that position"
:)) it works!! Tried it, it's super easy (when I say it's easy, it must be easy because I am super lazy about my hair) and really cute, if you have layers they may stick out, but since my hair is curly and has a messy look anyway it was still cute. ;) Cute, even for bad hair days! Braided Bun