Abstract: The disclosed computer-implemented systems and methods may map a user's expressive gestures onto the user's avatar and position the mirrored avatar onto a digital media feed thereby enabling the user to comment on and react to the digital media feed in real-time via their avatar. For example, the disclosed systems and methods can position the user's mirrored avatar onto digital media feeds include live camera streams, digital videos, and digital images. The disclosed systems and methods can position the user's mirrored avatar onto digital media feeds including digital media items from the user's client computing device. Additionally, the disclosed systems and methods can position the user's mirrored avatar onto digital media feeds including digital media items associated with other users within a social networking system. Various other methods, systems, and computer-readable media are also disclosed.