Fedora Labs is a selection of curated bundles of purpose-driven software and content as curated and maintained by members of the Fedora Community. These may be installed as standalone full versions of Fedora or as add-ons to existing Fedora installations.
You can download these tools as complete Fedora image, or you can install them using a software manager on an existing Fedora installation.
To install a spin, you run the spin on your computer and click the "Install to Hard Drive" link on the desktop. You'll be guided through the install process via a series of prompts.
After installing either the software bundle or the complete Fedora version you can run these tools by launching the applications that correspond with them.