1. A first device comprising: at least one computer memory that is not a transitory signal and that comprises instructions executable by at least one processor to: responsive to wireless text communication between the first device and a second device, the first and second devices being associated with respective first and second users with a history of past wireless text communication with each other, establish a first language setting for the first device responsive to the first language setting being a language setting of the first device in a most recent past communication between the first and second users; responsive to wireless text communication between the first device and a third device of the respective first user and a third user with no history of past wireless text communication with each other, and responsive to an indication that the first and third users have no language in common with each other, establish a first language setting on the first device according to a first user-indicated language preference; responsive to wireless text communication between the first and third devices of the respective first and third users with no history of past wireless text communication with each other, and responsive to an indication that the first and third users have one and only one language in common with each other, establish language settings on the first device according to the one and only one language; responsive to wireless text communication between the first and third devices of the respective first and third users with no history of past wireless text communication with each other, and responsive to an indication that the first and third users have at least first and second languages in common with each other, establish language settings on the first device according to which of the first and second languages is used more frequently than the other on the first device.
1. A first device comprising: at least one computer memory that is not a transitory signal and that comprises instructions executable by at least one processor to: responsive to wireless text communication between the first device and a second device, the first and second devices being associated with respective first and second users with a history of past wireless text communication with each other, establish a first language setting for the first device responsive to the first language setting being a language setting of the first device in a most recent past communication between the first and second users; responsive to wireless text communication between the first device and a third device of the respective first user and a third user with no history of past wireless text communication with each other, and responsive to an indication that the first and third users have no language in common with each other, establish a first language setting on the first device according to a first user-indicated language preference; responsive to wireless text communication between the first and third devices of the respective first and third users with no history of past wireless text communication with each other, and responsive to an indication that the first and third users have one and only one language in common with each other, establish language settings on the first device according to the one and only one language; responsive to wireless text communication between the first and third devices of the respective first and third users with no history of past wireless text communication with each other, and responsive to an indication that the first and third users have at least first and second languages in common with each other, establish language settings on the first device according to which of the first and second languages is used more frequently than the other on the first device. 8. The first device of claim 1 , wherein the first language setting includes a language in which a widget is presented.