Behavioral targeting in PPC focuses on what people do online, not just what they like. This includes pages they visit, products they view, or actions like adding items to a cart. For example, someone who checked prices on laptops may later see ads for laptop deals. This method follows user actions and responds with ads that match recent behavior. It helps reach people who are closer to making a decision. Still, timing matters because old actions may no longer reflect current needs. How important do you think timing is in this kind of targeting?