I find it lamentable that most people don't have the slightest idea that "Christmas" is a hijacked Pagan festival. It's got absolutely nothing whatsoever to do with the birth of Jesus. Even if we accept that a literal Jesus existed (which is eminently arguable), it's extremely unlikely he was born in December. For example, the Bible mentions shepherds tending their flocks at the time of Jesus' birth. They don't do this in Winter; they do this in Spring. No shepherd at that latitude tends his flock at night in December.
What we now call "Christmas" is a pagan Winter festival. It is a celebration of the end of the year and the coming of the Spring. It's no accident that it falls almost exactly on the shortest day of the year (accurate calendars being a relatively modern invention).
"Christmas" as it pertains to the birth of Jesus is just religious flummery.
As to what I personally do at Christmas: I observe it. I observe it coming. I observe it arriving. And I observe it passing. I don't "celebrate" it in any way. I consider that "Christmas" as it is widely understood, is not worth celebrating as it is based on lies, built on lies, built on lies, built on lies...