In my dynamic website projects, I've used JavaScript extensively to manipulate the DOM to create interactive and responsive user experiences. For instance, I implemented features like dynamic content updates without needing to reload the page, which greatly improved user engagement. I also used JavaScript to create interactive forms that provide real-time validation feedback to users. Additionally, I worked on implementing event listeners to handle user interactions such as clicks and hover effects, which enhanced the overall usability of the websites. These interactions were crucial in ensuring that the websites were not only functional but also intuitive and user-friendly.