Breastfeeding etiquette during the holidays is the same as any other time. Common courtesy and respect should be used at all times by everyone. Common courtesy and respect seems to have left the planet; no one seems to have a clue what they are anymore. With common courtesy and respect in mind, I have certain rules that I have when it comes to nursing my daughter.
My first rule is that I do everything possible not to expose myself to anyone while nursing. This is out of respect for myself and my daughter. What we are doing does not need to be seen by anyone. It is a private matter, just between the two of us. The only exceptions to this rule has been my husband, my mother (the first few times I nursed my daughter) and medical professionals who were making sure our nursing was going smoothly. My daughter is now three years old and still nursing. To my knowledge, no one has ever seen a part of my body that I wouldn't normally expose at the grocery store or at church.
Another rule is that my daughter will only eat in rooms where adults would normally eat. My in-laws suggested that I nurse my daughter in their bathroom when they found me in the guest bedroom, the room we were invited to stay in for the holidays, nursing our daughter. I thought they were joking, but I quickly learned they thought nursing was a lazy and dirty way to feed a baby. When I told my husband, he promptly took our bags to the car and we went home. He was not going to stand for his baby girl to eat in the bathroom.
I also follow the rule that I am a guest in someone's home and should do as they ask, within reason. Nursing in the bathroom is not within reason. Neither is letting others watch. I was a guest in a friend's home where she had set up a rocking chair in the living room that was to be used by me and my daughter when we were nursing. She explained to everyone that it was the "nursing chair." When the time came to nurse, my daughter and I moved to the rocker, blanket ready to cover up with. Much to my shock, I was asked by another guest in her home to let him watch. I politely said no, explaining nursing was a private matter. My friend overheard the request and quickly suggested that she and the other guest go outside to smoke a cigarette. The chair was not moved; my friend handled the situation with grace and tact. I nursed my daughter, completely covered up and in shock by the request, in the living room where I had been told to it was fine to nurse. No one seemed to mind and - the rules had been laid out in advance for everyone.
I try to be as accommodating as possible when nursing. I use common courtesy and respect when it is time to nurse. Despite knowing I am a guest in someone's home, there are certain things I can not and will not do. I am using common courtesy and respect; I expect others to do the same.