Start by putting the headband over your head so that it's just a little bit behind your hairline and all your hair falls underneath it. Pick up your hair, starting in the very back, and just tuck it into the top of the headband. Then work your way around to the side of the headband. You'll want the back to have a little more volume than the sides, so adjust as necessary. You may need a few bobby pins to hold your hair in place, particularly if you have long hair or bangs. But you can also wrap your hair around the headband more than once if necessary.
That's it! It actually stays really well throughout the day, but if you feel like you need some hairspray or extra bobby pins go for it. I only used one pin and the headband and this stayed in place all day.
Do you have a favorite hairstyle to keep frizz out of your way for the summer?