So of course you should first press the green flagged it will go through the first part of the project. Then when it comes up to the part that the cat is by itself, tap the cat sprite and you will know what the cat is doing. When the wall pops up and the cat is done talking you can tap on the bird sprite and see what happens. If you made it to the part where the bird is at her owners home you can then tap on the owner. If you get to the other bed room you can press the space bar for the cat's owner to show. Press the up arrow for the bird's owner to say something. Then after that you can press the down to see what the cat's owner says. Then press a key to see what the cat says. When the cat's finished talking you can press the 1 key and then you can see what bird says. If you want to know what the theme of the story you can press the s key to see what it is.
I recommend that you should do this on a computer because there are some keys that are meant for the computer. If there is something wrong you can just press the green flag to restart it. Please do not drag anything because it will change the backdrop.