The first thing to consider is your face shape. "All face shapes can suit a bob, the key is the line of the bob cut," said Windle. "The line of the bob is to accentuate corresponding points and features of the face, which isn't too dissimilar to contouring in makeup."
Windle explained that there are three common bob cuts: curved (best for those with a strong jawline), diagonal (best for those who want to emphasise their jawline), and square (best for those who want to emphasise their cheek bones). But you don't always need to wing it; if your hairdressers has a selection of wigs, go try a wig on, said Collier. "It gives you a really good idea of what kind of bob shape is going to suit your face best" and what you feel most comfortable with when you look in the mirror.