Interaction design involves navigation and interaction. Navigation refers to how users move around a website, while interaction is how users engage with content. Good navigation allows users to easily find what they need, like a phone number. Storyboards are like flowcharts used on index cards to plan and visualize a website's structure and content before development. Providing context devices like banners, headings, and consistent navigation helps users understand and navigate a website. Refining navigation through techniques like indicating the current page and always including a link to the homepage helps users feel oriented and in control of their experience on a site.