Bobby Pins: How to Use Bobby Pins in Your Hairstyle and pin it securely to the back of your head with bobby pins. lots of bobby pins. Selena obviously likes the asymmetrical hairstyles, Bobby Pins: How to Use Bobby Pins in Your Hairstyleroll the curl with you fingers & adhere to your hair with a bobby pin.Lift up the hair on the rights side at your temple and use a bobby pin Classic and trendy