Mine were fairly standoffish from about 8 weeks until they started laying. Just one was friendly throughout this period. She was also a little standoffish the last couple weeks before she started laying. Once they started laying, the other ones got friendly too. Now everyone is friendly, lets me pick them up. Sometimes they will try to run away, but they know the word "treats" and they will come running.
I also use empty aluminum pie pans (that you buy pie crust or pre-made pies in) to shake scratch for them. It makes a lot of noise, and they know I have treats. They can hear it, and come running...