Thanksgiving Day is a national holidya celebrated primarily in the United States and Canada as a day of giving thanks for the blessing of the harvest and of the preceding year.
What it nowdays stands for is to think about, remember and be thankful for the good things in life.
You celebrate it with family and friends. And there is always TURKEY on the menu. A traditional thanksgiving menu: turkey, mashed patatoes, stuffing, cranberries and vegetables (which can be everything). We had Brussel sprouts and Butternut Squash (butternut in the Netherlands we would call it probably call it a kind of pumpkin). And for dessert you always have pumpkin pie.
And if you really in distress about preparing your turkey, you can always call the "turkey hotline".
In the morning we watched the parade, if the weather is oke you go out for a walk, or play a little bit of football in the parc. In the afternoon you can watch a football game the Dallas Cowboys. They always play on thanksgiving day. It was a lovely expercience.