Square recently announced a new feature as an upgrade to its mobile payments app, Square Cash. The new feature allows users to send or request money using Bluetooth Low Energy (BLE) technology. Anyone can now make a payment from their device by simply tapping the name or photo from a list of those that appear within proximity. The feature works in such a manner that it’s not necessary to know the other person’s contact info. The Cash app uses BLE effectively to signal one’s intent to make a payment to another peer. This makes it easier for mobile payment enthusiasts to pay each other for tickets, restaurant bills and in many other social scenarios.