Chickens learn only by lots and lots of time. Sit em on your lap and hold gently, pet and try to figure out what this bird likes best-- i.e., cheek scritches? gentle neck-feather preens? belly rubs? and just keep em with you until they forget that you ever weren't their favorite part of the landscape. The younger they are, the better. If one sees you before it sees the mama chicken when it hatches it may imprint on YOU as mama-critter, which gets old fast since it will want to be on you ALL the time and peep piteously when separated from you by so much as a foot of space. This happened to me by accident and I ended up having to wake up my roommate in the middle of the night to extricate the bittie from deep in my hair where it had tunnelled-- I didn't want it to strangle itself in the tangles it made burrowing behind my ear. I admit it's difficult to resist a tiny tiny feather ball that LOVES you SO MUCH.
Either get used to wiping up poop, or find a pattern or a source for a "chicken diaper". All mama critters get pooped on, it's practically definitive of the role.
Just don't think your birds won't ever love you just because they take for-freaking-ever to get used to you. They're *prey species*-- everything that moves scares them, because every carnivore species likes chicken. Test the difference between, say, your cat's reaction to the red dot of a laserpointer, and a chicken's reaction. I can stand at the back door and "herd" my chickens into their run (several hundred yards away) with a laser pointer.
