Twitter feeds at conferences.
I'm not on Twitter, but I do like registering a Twitter account if I'm at a conference with a hashtag and a live Twitter feed. The game is "Can you get people in the room tweeting about something unrelated, on this hashtag?".

I successfully managed to hijack the Twitter feed at a social media conference/awards night into people talking about owls.
( prince-igor si tacuisses, philosophus mansisses, Thu 15 Mar 2012, 15:13, 8 replies)

Was at a conference last week
...and the hashtag managed to trend. Within minutes, the mahoosive Twitter screen in the hall filled to the brim with porn. Happy days.
( Scaryduck LIKES EGG, Thu 15 Mar 2012, 16:13, closed)

I'm amazed this doesn't happen more often.
I decided I should go for something that wouldn't get me fired if anyone found out it was me. Owls seemed a good option.
( prince-igor si tacuisses, philosophus mansisses, Thu 15 Mar 2012, 16:22, closed)

*click*

(Eukanuba, Thu 15 Mar 2012, 16:36, closed)

Oh man, I use the internet at work sometimes too.

( Amorous Badger NAKED BEA ARTHUR PHOTOS 4U, Thu 15 Mar 2012, 18:34, closed)

I'm not on b3ta,
but I have registered an account so that I can comment on qotw stories.
( monster munch person, man, woman... camera... TV?, Thu 15 Mar 2012, 16:51, closed)

So your story is 'I dick about on the internet when working'?

( Amorous Badger NAKED BEA ARTHUR PHOTOS 4U, Thu 15 Mar 2012, 17:50, closed)

Pretty much
Sorry I'm not as exciting and interesting as you. Bet you drive a Honda Accord.

Please could you give me some advice about how I can become as popular and witty as you?
( prince-igor si tacuisses, philosophus mansisses, Fri 16 Mar 2012, 9:20, closed)

You can't
don't even try.
( His Popiness the Hole Invaded Poland on, Fri 16 Mar 2012, 23:34, closed)