"The layers on this A-line bob give the ends a choppy look," says Babaii. Jagged ends make hair look thicker around the jawline, filling in the space where your face looks its thinnest. Use a curling iron to get Emily Blunt's piecey look. Thick, wavy textures might have trouble pulling this off without a light hair spray to set the style. Try David Babaii for WildAid Light Hold Hairspray or Suave Professionals Touchable Finish Hairspray Lightweight Hold.