When all you do is talk about your self on Facebook, upload your best vacation pictures and fish for 'Likes' and comments to support your comments and pictures. You are a narcissistic Facebook user.
"Just got back from Lake Tahoe" Here is a picture of me standing on a boat. Also, here is a picture of me baking cookies with my 3 kids (By the way, I only see them once a week). I am a Narciface User. See also, Narcissist, Poser, Self Love, Needs Attention.