How can a real-time collaboration on a diagram be initiated after adding a collaborator?

The most effective way to initiate real-time collaboration on a diagram after adding a collaborator is through the use of the comment bubble. This feature allows users to communicate directly within the diagram, enabling instant feedback and discussion about specific elements of the design. When a collaborator is added, utilizing the comment bubble fosters an interactive environment, making it easier for team members to address queries or suggestions in real-time as they engage with the shared content.

While sharing a link can help in granting access to the diagram, it does not facilitate immediate communication or interaction. Clicking on the edit button enables collaboration but does not inherently initiate discussion. Tagging in a comment can attract attention to specific points or issues, but it is reliant on the initial use of comments to spark the collaborative dialogue. Thus, the comment bubble stands out as the primary tool for activating real-time collaboration after collaborators are added.