1. First download and install Keynote, and then open Keynote.

2. Click the+icon in the upper left corner of the screen to create a new presentation.

3. Then, Keynote will display some built-in themes, and choose your favorite.

4. In this way, a new slide will come out. Then click the "+"icon in the lower left corner of the screen to add a new slide page.

5. The following new slides have been added.

6. Then select the slide page in the left pane and click the+icon in the upper right corner of the screen to add many objects.

7. Select the target to adjust. Take text as an example. Click the brush at the top of the screen to adjust the "style, text and arrangement" of the text.

8. Taking the text as an example, select the target to add. Select Animation Effect from the menu that appears above.

9. Then select the desired animation effect and click Finish in the upper right corner.