Well, the 'left right' Christmas game might be a new or specific take on a traditional Christmas activity. The Nativity story is a fundamental part of Christmas, which tells of Jesus being born in a manger. In this 'left right' Christmas game Nativity story, perhaps the 'left' and 'right' directions are used to distribute roles or items related to the Nativity. For instance, if you pass a gift to the left, you might be assigned the role of an angel in retelling the story, and if to the right, you could be a wise man.
The 'left right' Christmas game Nativity story could be a creative combination. The Nativity story has elements like the Virgin Mary, the baby Jesus, and the three wise men. In the game, it could work like this: people sit in a circle. When the game starts and the leader says 'left' or 'right', an item related to the Nativity story is passed. Each person who receives the item then has to add a part of the Nativity story. So, if it's passed to the left and you get it, you might say 'Mary was visited by an angel' and then pass it on according to the next 'left' or 'right' call. This makes it an engaging way to share the Nativity story during Christmas.