Well, I am on brood number 5 and I have spent a lot of time with every chick I have ever raised to this point. Some are super friendly, some are tolerant of me and some ignore me. I think interacting with them helps but I wonder if there is more to it than that. Like some breeds just being more friendly than others. Or even some strains of the same breed being more friendly than another strain. Or even individual personality.
Most of my Buff Orpingtons are very friendly. They let me pet them, pick them up, eat from my hand etc and they are a few years old now.
My RIR's pretty much tolerate me but are not friendly with me. Not like they are mean or anything, just indifferent.
My Barred Rock, only one, is super friendly. It tries to get into the house daily! Follows us around like a puppy. Jumps up on our laps and you name it!
My EE's are nosy! Always in your business but only want touched when they say so! Sassy and full of personality but friendly in their own way.
I have a few Australorps that fall somewhere between the Orps and the RIRs in personality.
I have more breeds but they are still chicks and I am still learning about them but as you can see, all of my birds act differently by breed even though they were raised the same way. However, that is a generalization. Some birds in each flock act differently than others!
I would love to see what others have to say on this topic! I am but a fledgling at raising chickens!