If you have a square face, you may have a shin level light folded haircut. Therefore you can hide angular shape of your face. Also using this model with light waves you can create a much softer image. If you have a heart shape face that narrows from your forehead to chin, an asymmetric bob cut that elongates from back to front would make your face look much proportional. Short haircuts known as pixie models makes your face look longer because they are longer in the top, so they are much suitable for round shaped face features.
If you don’t like to work on your hair much or you don’t have the time for it, and if you have a round face, you can choose a model like this. Starts with light folds in your temples, a bob cut with bangs makes your face more proportional. If you have a long face, asymmetric bob cuts would suit you very much. Chin level hair can make your face look a lot shorter.