Ridgerunner - you are funny!
No, she is not broody- there IS no place for a hidden nest unless she is rolling them under the coop when she is done, and none of the other eggs are pecked or bothered. She watches her best friend lay, like she is either inspecting that it is done correctly, or trying to remember how to do it herself. I am going to check and see if she if growing in feathers under all the fluff- there isn't much in the way of feathers floating around in her coop or run, but maybe she is slow and subtle? Thanks for the suggestions!