Patent attributes
Methods, systems, and apparatus, including computer programs encoded on computer storage media, for generating and displaying contextual audiovisual content as a reaction video. One of the methods includes receiving a request from a user; and in response: receiving an input from the user identifying an incoming message of an incoming message stream coming into the user device from the platform, receiving an input from the user using the user device, wherein the input selects content from the incoming message as a subject content item; displaying the subject content item on a display of the user device; while displaying the subject content item, recording a user authored video; generating a reaction video, comprising generating a reaction video frame for each user authored video frame, and generating, as the reaction message, a social messaging platform message comprising the reaction video.