this is a face book profile page:
the activity feed is not intended to show a facebook profile.
It is intended to show the like and comment activity for a website.
if you have pages on your site at:
and you include like buttons, and comments on those pages, you can create an activity feed on a page, and tell it to look for activity at:
and show the like and comment activity.
It wont show activity from a facebook profile though.