I go out and talk to them, but I don't make them all into major pets. Makes it too hard when one of them gets killed. I usually lose a few throughout the year. The ones I got first...barred rock, slw, glw, golden comet, and 2 buffs are much lovey "er". I babied them much more in the beginning. I didn't get the A's until they were three weeks old.
They are the hardest to sex. I look for slower feathering for a roo and size compared to others. But still those suckers like to keep you guessing. I have several that are close to 8 weeks and I think I know what is what by now or I think. Lol
The third picture is two blacks and a blue. I'm pretty certain the blue is a girl.
The fourth picture is just to show off the nice blue sheen on the black.
Most, if not all, chicks will have spur bumps and some hens will grow spurs. I had a speckled Sussex that had 2 1/2 inch long, wicked, sharp spurs.
Right now all of your chicks look like pullets to me. There isn't anything about them that screams roo. But, as others have said, EEs and Ameraucanas can be notoriously hard to sex until they get a little older.
One thing I have noticed is a much brighter, somewhat bigger red comb on two of them. I read somewhere that means a boy. Dunno. Guess I'll just have to wait.