Get your model to look up towards the light to create nice shadows on the cheekbones and really sculpt the face. Just tilt the chin up a bit; too much will lose the flattering shadow and will look unnatural, and uncomfortable! Focus on the face and keep shooting.
2. Use Storefront Windows as Softboxes
As Matter says, the right storefront window is like a $5000 setup right in the middle of the street that you don’t have to pay a dime for. You can get warm, soft, even portrait lighting just like in a professional studio.