How do you know if a hen is broody?

[new2green]

I have 3 laying chickens in a flock of 10 chickens and 4 roosters. One of the chickens was sitting at the nest facing the back. Is she sick or broody? How do you know? Thank you,

 

[Granny Hatchet]

if she has eggs under her and you stick your hand in there, you will know.lol i got it from 2 different hens today. if she runs off in a huff she is not ready yet. if she doesnt really care what you do, she is more then likely sick.