1. A system comprising: at least one physical computing device that: detects a first activity performed by a first user with respect to a media service while the first user is logged in to the media service with a particular user account and a second activity performed by a second user with respect to the media service while the second user is logged in to the media service with the particular user account; determines that the first activity is performed within a first device context and that the second activity is performed within a second device context; includes, based on the determination, the first activity in a local activity set associated with the first device context, the local activity set including one or more activities performed with respect to the media service exclusively in the first device context; uses the local activity set to provide a personalized interaction experience with the media service within the first device context.