11. A method comprising: identifying media content that has been at least partially played at a media playback device within a recent period of time; presenting, within a message composition interface, an arrangement of phrases selected based on the identified media content; receiving selection input that selects a particular phrase from the arrangement; responsive to the selection input, inserting the particular phrase into a message being composed within the message composition interface; receiving, from a server system, metadata describing the identified media content; selecting at least one of the phrases for inclusion in the arrangement from the metadata, including at least one of: a title, actor or actress name, writer name, air date or time, channel, clip, or image.
11. A method comprising: identifying media content that has been at least partially played at a media playback device within a recent period of time; presenting, within a message composition interface, an arrangement of phrases selected based on the identified media content; receiving selection input that selects a particular phrase from the arrangement; responsive to the selection input, inserting the particular phrase into a message being composed within the message composition interface; receiving, from a server system, metadata describing the identified media content; selecting at least one of the phrases for inclusion in the arrangement from the metadata, including at least one of: a title, actor or actress name, writer name, air date or time, channel, clip, or image. 13. The method of claim 11 , further comprising: receiving, from a server system, at least a first phrase and an indication that the first phrase has been used in a first message sent by a first user within a certain period of time after a first media playback device associated with the first user played at least a first portion of the identified media content; selecting the first phrase for inclusion in the arrangement because of the indication.