It usually helps me to see the saddle feathers, or at least the natural stance of the bird. Honestly, cockerels will often be the friendliest; hens can be much shier until later.
Pretty birds, though!
I had a terrible little Napoleon of a bantam cochin once who began crowing at 10 weeks, too--we could hardly believe it. Ten weeks is unusual but it does happen. It also happens that they wait a long time to crow.
My 16 week old Ameraucana cockerels are still not crowing. Usually roosters begin crowing around four or five months; bantams tend to begin a bit earlier, maybe three or four months (on average). As you can imagine, though, they don\'t always read the book and do what they are supposed to do...