I expected my son to have problems with the chicks possibly pecking him, so I got some meal worms & had him give them a couple, then we sprinkled their food in his hand & I held his hand while they ate it (why is hand feeding the SAME food so much more enticing? LOL). The only thing that kinda hurts is when you curl your fingers a bit too much & they latch on to a pinch of skin lol, but I still can't really say it HURTS opposed to it just being a really weird feeling.
When I was little, a big turkey pecked a piece of grain off the palm of my hand & I still panic at the thought of that lol, it HURT!! But I've never had a chicken do that. But then again, like another poster said, I'm much bigger & can squash em like a bug ;-)
I'm also used to dogs, I end up unintentionally crossing my dog training to everything else
so I have a tendency to be the dominant critter in the group & though I won't eat them, I assure them this lol, I do expect them to listen. So when I try shooing them & one puffs up against my hand, I give her a little shove instead, she usually turns away quickly. If one tries pecking me inappropriately, I just reach out & give her a grab on her beak. They really do respond well, they don't really have anything too scary as the roosters have (or my mom's tom turkey LOL).
I say if you can deal with an ankle-biter dog (no offense, just my descriptive lol), you can deal with these chickens! Be big & tough! These chickens got nothing on you
"Be the alpha dog" in the coop.
Good luck!