Go to http://www.facebook.com/badges/
In this example, we'll use the Profile badge, but the steps are the same for all of the badges. Click on the Profile Badge button(1).
Edit the badge
Click Edit this Badge (1) to choose the badge options.
Copy the embed code.
Click on Other (1) and copy the embed code (2).
Login into Website Builder
Add an embed widget to your page.
Click the edit icon (1).
Paste the code and click Save Changes (1).
The badge will appear
Publish your site to make the badge visible.