Whenever something happens to a component—for instance, a button gets tapped—the component dispatches one or more events. What we need to do is tell the button to notify us when that event gets raised. We’ll be using the TouchUpInside event. If you think about how you click a button on an iPhone or iPad, the actual click inside the button isn’t what matters: it’s when you remove your finger (or “touch up”) that the actual tap occurs. Connecting an event to a method is just like connecting an element to an outlet, which you just did on the previous page.