I must warn you that this method is a little contraversal in the chicken world: Many people say inspire fear in roos and let them be, i say establish a relationship and maintain silent power from that.
When I got my first chicks, they were about 3 weeks old- I made an effort to pick them up everyday.
At least 5 mins for each chick, yes, they run from you at first but
treats slowly soften their heart. I had them in a giant produce box (the large type they have watermelons in at the grocery stores), ocassionally i would sit in it with them so that they could explore me on their level and would know i meant no harm. By the 7 week mark, they assocaited me with food and i was ok by them...they would wait on the edge of the box for me. They would gladly sit on my lap and not fight me in picking them up. At the 3 month mark, they did get a little more standoff-ish when being picked up...but nothing bad, still held them just the same.
-> If they ever peck you, flick them on the snout and say "no" loudly.
->Practice the football hold ..this humiliates them a little.
At 11 months now, my lead roo Gilda has only tried to the wing dance once and i chased him around the yard for it. He is a very good leader and a mellow boy who still sits in my lap (bc i think he knows he gets more treats that way. lol) and lets me pick him up.
BTW, I had 3 males out of those 5 RIR chicks and they ALL turned out mellow!!! so
to people who think that method is bad.