Get to know the person.
At this time of year, my thoughts go not to presents and nice food, but to the poor people to who Christmas is just another day with nothing to eat. Those who wish the day to be over, so they are not forced to hear about the happiness others are having while they struggle to put a basic meal on their table.
My family was there several years ago, and if not for the kindness of the local school we would not have had a meal for dinner; to this day I cry when I think of their generosity.
When I worked for the Bristol Museum, I used to work at the Blaise Castle museum, near Henbury; many days I'd turn up for work to see a man sitting in the porch to stay out of the wind. At first glance, you could have passed him off as a tramp, but I got to know him and his life a little; only a year earlier he'd been a successful businessman with a family, then everything collapsed and bit by bit his life fell apart until he had nothing remaining.