Research says Americans unconsciously use holiday decorations to communicate friendliness and cohesiveness to their neighbors.

Hauling out your wreaths and bows gets you into the spirit of the season, but which seasonal spirit should you get into? Martha and her people have dabbled in all of it, and they’ve arrived at this universal truth: Christmas trees are as unique as the people who decorate them. Your tinsel, toppers and ornaments reveal who you really are.