Choose your words carefully

In the age of Twitter, Facebook, and 24-hour news, how do you give 60,000 people a sneak preview of something millions are waiting for... and still get them to stay quiet for five days?

So how did Oscar-winning director Danny Boyle pull it off at the 2012 Olympics Opening Ceremony dress rehearsal?

Boyle didn’t ask the lucky attendees to “Keep it secret.”

B…