At the Welcome to Fedora 20 screen, use your mouse to select the language (for example, English) you prefer to use for the installation and as the system default on the left side. On the right side, select your keyboard layout (for example, English (United Kingdom)). Again, this layout will be used during the installation and it will be the default on the installed system. You can also change the keyboard layout at any time during the installation using the layout switching tool in the upper right hand corner.
Alternatively, type your preferred language into the search box and select from the list of results.
Once you have made your selection, click Continue.