I have to admit, I'm pretty high maintenance when it comes to my eyebrows. They can easily make or break your look. But with all the different brow shape options out there, like flat, arched or round--how does a girl know which one is best for her? We took a trip to the b London Brow Bar over at Topshop in New York City, where brow expert, Saima Feroz gave us some exclusive tips for shaping your best brows. Check it out!