I'm guessing you didn't get many replies because most people do basically the same thing: get together with family and friends for a large dinner, usually roast turkey, potatoes, gravy, cranberry relish, and various autumn vegetables, and say a blessing to give thanks. Many of us also watch football, either in person at local high school games, or NFL on TV.
This year, DH and I didn't have any plans, as he lost his job a month ago, preventing us from travelling to be with family. On Thanksgiving morning, I was taking some cans to the recycling bin when I saw my neighbor across the street in her driveway. She asked about our plans. When I replied that we didn't have any, she insisted we (DH, DS-3, DD-9 months, and I) join her family at her mother's house. There were approximately 25 people there in this tiny house. They had several card tables set up in a row, from the kitchen into the living room. The children had a wonderful time playing, and we had a wonderful time socializing with people we barely knew. Our neighbor's mom said a beautiful, heartfelt blessing, and we enjoyed a delicious meal. After dinner, we socialized and watched football for a couple of hours. We felt very blessed and thankful for these new friends who so warmly welcomed us into their family.