In Your Pocket has a variety of interesting features available to you, here is a quick list of things you can try to get started:
To listen to a book you can say read me a book, from here you will be given a list of book sources to choose from, and then a list of available books for you to browse. You can also search for books by saying something like Find books by Louisa May Alcott or Find books with title Little Women.
Similarly you could say List podcasts or Which newspapers or which magazines do you have?, or you could ask to Listen to radio to browse through all the available podcasts, newspapers, magazines and radio stations available to you.
You could also try using your device to make a call by saying something like Call 0 7 1 2 3 4 5 6 7 8 9. While in the call you can press the talk button to turn speaker mode on or off, and you can press the power button to hang up the call.
You can also ask Pocket other questions such as what is the time? or What is the weather in London?.
These are only a few of the many features available to you when using In Your Pocket, you can learn more about the other features by listening to the different sections of the user guide.