I have to agree with the dried mealworms (Which can also be purchased on
amazon.com). Offer those and they'll come running to you, to peck them out of your fingers!
My bantam Easter Egger quickly learned that she could get all the mealworms her heart desired (within reason) if she jumped up into the palm of my hand!
The first time she did this, I reinforced it by giving her another mealworm--she caught on quickly!
Now, everytime I approach the brooder, she has a special, loud and clear "PEEP" for me, telling me she's hungry for worms! I can't reach in for anything without her jumping onto my arm!
I know she's just motivated by food, not affection, but she really has won my heart, anyhow. She is, by far, my favorite!
The others (standard-sized Marans, Wyandotte and Faverolle) are more wary, by varying degrees, but just yesterday, the Wyandotte also jumped up into my hand. I'm hoping that eventually, all of them will "warm up". Even the scaredy-cat Faverolle, who would run and hide under the EcoGlow when I'd be around, has begun to approach me.
I keep both chick grit and sand in the brooder, so I know they're getting enough grit to "process" the worms.