There are many ways that you can follow to keep your hair curled all day like using Pravana's Sulfate Free Volumizing Shampoo and Conditioner, or braiding your hair over night. For more details you can visit, womenshair.about.com/od/products/tp/lastingcurls.htm.
Ok for some Redon for me, when I out tons of hairspray in, it lasts for like 3 hours but when I use very little or no hairspray it stays longer. And make sure u don't wash ur hair the day u r gonna curl it, it stays when it's a little dirty.
SET HAIR!!!! over night, it last all day no matter the hair type! section in to 4 section ( the more sections the fuller) coil and pin. Morning style and mist hairspray lightly. I promise it will last all day, unless it rains...lol