Even Old St. Nick could use a refresher course. These jolly performers are brushing up on their ho, ho, hos to ensure they spread maximum cheer this holiday season. They all attended the annual Santa School in London to prepare for a busy holiday season and learn how to respond to the questions of kids. Aside from re-learning the basics, like the names of all of the reindeer, the Santas also learn how to say Merry Christmas in multiple languages. InsideEdition.com's Mara Montalbano has more.