In this video, the speaker demonstrates how to use Quest on Demand Audit to track and analyze events in Office 365. They show how to search for specific events, filter and manipulate search results, and visualize information in different tiles. They also highlight some specific events, such as email forwarding, file access and modification in OneDrive and SharePoint, and non-owner activity in Exchange Online. The speaker emphasizes the importance of tracking and monitoring these events for security and compliance purposes.