Tracking Interaction in Google AnalyticsDesign Patterns for Events in GTMDesign Pattern 1: GTM’s Auto-Event TrackingDesign Pattern 2: Custom JavaScript in GTMDesign Pattern 3: Explicit Data Layer Events in Site CodeApplications of Interaction TrackingOutbound LinksPDFs and Other DownloadsMail and Phone LinksTabs, Hover, Scroll, and Other Content InteractionsSocial InteractionsVideoSummary