How Well Do You Know Your Facebook Friends?
PHOTO: Photographer Ty Morin recently began a campaign to meet, in person, with all 788 of his Facebook friends.

Photographer Ty Morin recently began a campaign to meet - as in, shake hands, make eye contact - with all 788 of his Facebook friends. He says he knows or has met only about 300 of the 788. He is filming each meeting, and the overall journey, for a documentary.

How many of your Facebook friends have you actually met in real life? Take the online ballot below, and watch the full story on "20/20? Friday at 10 ET.

How many of your Facebook friends have you actually met in real life?

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