To see a working and interactive version of your publication you will have to publish it first. You will be able to see the transitions between pages and click on the links for the different interactions. It's really easy too do.

Just push the Publish button in the top right part of your screen while you're on the page overview. This won't mean you're publication is publicly viewable yet. It has to be activated first. While it is inactive, only you can see it by previewing it directly or using the preview link option. The preview link can be found in the menu on the left.