Fear of missing out cause you to:

~Sleep less
~Twitter incessantly
~Party more
~Friends on FB
~Update status ala celebrity wanna-be
~Never 1 feet farther away from your personal electronic device
~If all possible you rather carry your cell than your ID
~Must know what is happening with the Joneses or face the wrath of “so yesterday”
~Post photos preferably with someone and “doing” something
~Make your life seem more exciting than it really is
~Feel depressed that other seemed to have more fun, fulfilling life than you do

Ahhh the joy FOMO syndrome.