Intuitive interactions with a web page are extremely important to understand. When a user makes decisions about how to navigate through a site, those decisions are influenced by information from the real world. So this information must be taken into account when designing the navigation. Don’t confuse “intuitive” with “instinctive.” When used as a web design term, intuitive means it’s understood that most users will make the same decisions when confronted with a particular design element. Instinctive means that if any more smoke comes out of their computer they will decide to run away.