Its much harder when you have a line of people too. I give myself 2 hours per client(I rarely take that long, but, I have that time) so, I can relax the dogs/kids and figure them out. Kids I really have less time with as they get over it FAST.

I had one dog that I swear was just not going to look at me. She warned me he didn't like the camera, but, I figured he didn't like having a point and shoot in his face. No, he did NOT like the camera. He hid his face in her legs and would NOT turn to me at all. He finally looked at me with ears when I bounced the ball. His love language was a ball. Some its food(which I use VERY sparingly) some it is a noise, you just never know. Another last resort is to crinkle a treat bag and throw it in the air.