Turn on AirDrop.

Turn on AirDrop to receive items from another iOS 7 device that supports AirDrop. Swipe up from the bottom edge of your screen to reveal Control Center and tap AirDrop. You can choose to receive items from Everyone or from Contacts Only (sign in to iCloud). If you tap Off, you won't be visible in AirDrop. Note: Transfers are encrypted, and you’ll always be asked to accept AirDrop transfers.

by via Apple - Support - Most Recent - iPhone