Stupid social media trends are the chain letters of the 2010s.  Here's the latest one.  It's called the Number Game, and, sadly, your friends may REALLY try to suck you in.  Here's how it works:

 --Someone sends you a private message on Twitter or Facebook containing a random number.  Then you're supposed to post a public response featuring that number and your honest opinion about the person . . . but not their name.

 --So it's only partly anonymous . . . because when you post your opinion of someone, THEY know who you are, but no one ELSE on Facebook does. 

 --Anyway, if your Twitter feed or Facebook wall is filling up with messages like "29.  Handsome.  You should have called me back" . . . now you know why.