If you want to change the hairstyle and do not want to have straightening and curling hair, layer-cutting is a good choice.
Kristen Stewart Long Wavy Cut
Rihanna Long Wavy Cut with Bangs
Leighton Meester Long Curls with Bangs
Ashley Tisdale Long Braided Hairstyle
Lily Collins Long Curls
Mel C Long Center Part
Rachel Bilson Long Layered Cut
Victoria Justice Long Wavy Cut
If your hair is naturally curl, cutting it with layer to create different hairstyles.
If your hair is very fine, layer cut around the vicinity of the ear to create a full effect of hair. If your hair is very long and wave, layer cut around lower half of hair to create sexy effect.
If your hair is very thick and you want to cut it thin, you can ask the hair stylist to prune the hair horizontally by scissors.