If a stylist suggests a cut which is above your jaw then go elsewhere, this will only exaggerate the squareness of your face. If you have fine hair then a long poker straight bob will really flatter your wide jaw. If its curly hair you have, textured layers around your face will soften your strong features.
You can wear a layered bob, however it should end below the jaw line. Make sure in styling that you achieve some roundness to the shape and some height at the crown or fringe, and you will be on the right track.
Centre partings will work with your symmetrical face and align your jaw.
Classic loose buns will allow hair to fall around your face making its shape look less masculine.
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Team Hemera xx