Mary Chheng is a fixture at James Joseph’s Newbury Street flagship, where she’s relieved male hair hardships for 13 years. She specializes in texturing (read: she helps guys feel better about thinning manes), and she’s gifted at styling hair to suit a client’s contours and account for cowlicks. Some call it talent, but she calls it instinct. “I can look at someone’s face and know exactly what they want,” she says.