Jehovah's Witnesses are a religious group that do not celebrate Christmas due to their belief that it is a pagan holiday with no religious significance. They believe that Jesus was not born on December 25th, but rather in the fall. Additionally, they reject the concept of a "santa" figure and view the gift-giving aspect of Christmas as a commercialized distraction from the true meaning of the holiday. Therefore, Jehovah's Witnesses do not participate in any activities related to Christmas, including the exchange of gifts or decorations.