 In Scratch, it's important to set up a project and let people know how to interact with your project. One way to let people know to click on the different objects in this project is to use the say block. To set up my project, I can go to the events category and drag out the when green flag clicked block and snap it on top to trigger the code to start when the green flag is clicked. Now anyone who looks at the project will know how to use it. Try using the when green flag clicked block in your holiday card project.