A 1/2 inch curling iron can add playful definition and bouncy body to straight hair, but mastering the handy tool's usage can be trickier than expected. If your technique is wrong you could end up with uneven kinks instead of springy ringlets. Using a clipless 1/2 inch curling iron will help prevent unnatural looking crimps. If you don't have a clipless curling iron available to you a standard iron will do. Simply leave the clip in the closed position and wrap your hair around the entire iron instead of tucking it under the clip.
Smooth a drop of heat protection oil over your hair, coating strands from mid-shaft to the their ends.
Divide your hair into manageable sections. How many sections you need will be determined by the thickness of your hair.
Clip aside all the sections you created except for the one closest to the nape of your neck.
Put on your heat protection glove.
Using your gloved hand, grab a clump of hair that is no more than a 1 inch wide from the un-clipped section.
Wrap the hair around the iron starting at the root and working down.
Hold the hair around the iron for 10 to 20 seconds, then gently slide the new curl off the iron.
Repeat this process moving around your head one section at a time until you have curled all your hair.
Mist hair lightly with hairspray.