Its good that you are asking these questions. I on the other hand, did not, and we suffered a little from not being prepared.
I am very social and enjoyed each and every visitor that came to see us in the hospital. Maybe it was the elation of having a new little person, the excitement of showing her off to my friends and family, that led me to actually PULL HER OFF THE BREAST when visitors came. It was so foolish and I realized my HUGE MISTAKE when upon discharge, the Dr. said she had lost too much weight. Went from 8.9 to 7.14. I felt so guilty, but you make mistakes and learn from them (thinking positive here!!).
Our visitors didn't stop at the hospital. We had even more coming by the house, but you better believe that half of them didn't lay eyes on our LO because if she was hungry, we went in the nursery BY OURSELVES to nurse. Nothing else mattered but her needs and I learned the hard way.
Also, I am somewhat modest and have tried to overcome it by nursing in front of my female friends/family. But I realized that even though I was trying, I was still uncomfortable and that made LO feel my anxiety. So we have to nurse in "private", be it a bedroom at a friend's house or a corner of a room without people close by, or planning outings/visitors around her feedings. Good luck to you and your LO!!!