To play this game simply reply with the next Holiday thought that comes into your mind upon reading the previous post, the next person will add his/hers and so on.
First word: Christmas
Next word: Tree
Next word: Decorations
and so on.
Since the game is Chain Reaction, you might discover something that isn't connected to Christmas, other holidays might come to mind and we'll just see where our thoughts lead us.
I'll start us off with the the first word . . .