Figuring out your facial shape is the first step. To objectively figure out what exactly your facial shape is, measure your face with a ruler and write down the measurements. First, figure out the distance between your cheekbones and jawlines. Then measure the width of your forehead and then the overall length of your face from the hairline to your chin.
Your face is oval shaped if the length of your face is equivalent to one and a half times the width. It is narrower at the jaw lines than the forehead.
Your face is round if the length is equal to the width. The widest point of your face are the ears and cheeks.
Your face is oblong/rectangular if it is longer than it is wide. The width between your cheekbones is the same as the width of your forehead.
You have a square face if your face is angular and is as wide as it is long. People with square faces have a distinct, angular jawline.
You have a heart-shaped face if your face is wide at the cheekbones and hairline and you have a narrow chin.
Your face is diamond shaped if it is widest at the cheekbones with a narrow forehead and jawline.