Methods and systems associated with facilitating transactions based on proximity between devices, the methods and systems including ranking distances between a first device and a plurality of other devices based on wireless signal strengths; presenting a representation of a first user of the first device on one of the first device or a second device based on the ranking when the distance between the first device and the second device satisfies a threshold; causing server(s) of a payment service system (PSS) to identify user accounts of the first user and/or a second user of the second device based on selection of the representation and a user identifier in a wireless signal transmitted by a transceiver of one of the devices; processing a transaction using stored payment data associated with the user account(s); and presenting an indication of the transaction on at least one of the devices.