Sending a photo or a document to someone who is right next to you via text or email is fine. But there is a much faster way to do it.
With AirDrop being added in iOS 7 you can quickly and easily share anything from any app with a Share button via Wi–fi
You’re automatically visible in AirDrop to your contacts running iOS 7. But you can also make yourself visible to anyone nearby using iOS 7 or to no one at all.
Go to: Share Button > AirDrop and select the users you want to be visible for or just open control center
When you receive an AirDrop an alert pops up. If you accept the AirDrop, you’ll be taken directly to the shared item in whichever app handles its content type.