XR environments offer new opportunities for collaboration, but they also present challenges regarding users’ perception of each other’s intentions and actions. In that context, TUC introduces mechanisms that facilitate seamless interaction between users within a shared virtual environment. Demonstrated through a task scenario involving object placement in specified target positions, this system enhances co-located collaboration by utilizing visual cues to effectively convey the collaborator’s actions and intentions. Utilizing HoloLens 2 devices, the setup features the visualization of gestures and gaze actions, along with spatiotemporal characteristics ensuring the user remains focused on the task. The system utilizes gaze behavior to indicate attention and the placement of shared annotations for target positions, all synchronized through a peer-to-peer network topology.