You start by downloading a zip file that contains some css and font files. Copy the resulting /font directory and /css/font-awesome.min.css to your site. Then update the HEAD section of your web pages with
<link rel="stylesheet" href="/css/font-awesome.min.css">
and you’re all set to go.
You can see examples of how to use the icon fonts. One of the examples is a fancy way of doing block quotes.
Use a few of the new styles together, and you’ve got easy pull quotes or a great introductory article image. Or spinning icons for loading and refreshing content. Or fun big icons in multi-line buttons. You can combine all of them in any combination to get lots of new possibilities.
All icons on this site use Font Awesome.