User engagement means how people react to your content, such as liking, commenting, sharing, clicking, or spending time on your page. It shows that people are not just seeing your posts but also paying attention. When users engage often, social media platforms and search engines see your content as useful and push it to more people. Engagement also builds trust because active pages look alive and real. In my view, focusing on engagement makes marketing feel like a conversation instead of noise. How is engagement measured in a simple way?