#AirdropStepByStep * Contacts Only: Only devices associated with people in their Contacts app can see them.

* Receiving Off: No one can see them for AirDrop.

* Apple ID: While not strictly required for "Everyone" discoverability, using the same Apple ID or having each other in contacts enhances the experience and security when using "Contacts Only."

So, in a nutshell, AirDrop is a seamless way for Apple devices to directly communicate and share files wirelessly, leveraging the speed of Wi-Fi and the discovery capabilities of Bluetooth. It's designed for quick and easy sharing with people nearby.