Smart design guides people smoothly toward a goal, like a signup or purchase, while still making exit and choice easy. Mousetrapping, on the other hand, tries to trap users with confusing navigation, hidden exits, or forced clicks. Measuring this means watching user behavior closely, not just conversions. Tracking where people drop off, hesitate, or repeatedly click back shows whether flow feels natural or restrictive. Heatmaps and session recordings act like behavior logs, revealing friction points. Analyzing these patterns helps refine layouts, simplify paths, and remove manipulative tactics.