The Fambassidor will sometimes just tell them what is going on (read status updates and such aloud to them), but often will log onto their own account, step aside, and let the non-Facebook person snoop around.
Girl 2: "I did! He's a nut case."
Girl 1: "How'd you know? He updated his status and then took off immediately. You're not on Facebook."
Girl 2: "I know...got a Fambassidor. She keeps me in the loop."