07/29/2026
A dog’s eyes give us one of the earliest clues about where their attention is shifting and what they may be considering before the rest of their body responds. That matters because a marker captures the entire moment. I need to know whether the dog is mentally engaged with me, watching something else, preparing to disengage, or beginning to make a choice I want to reinforce.
For this dog, I briefly used a bandanna to improve visibility while using a capturing method—marking a behavior he offered naturally rather than prompting or luring it. Even with his eyes visible, he has to lift his head significantly for me to see both of them clearly. I marked and reinforced that exact picture: head lifted, both eyes visible, and attention available for training.
Through repeated, accurately timed reinforcement, that behavior increased. He is now learning that lifting his head and clearly showing me both eyes is one of the behaviors that produces reinforcement. He did not need to understand why at the beginning; operant learning occurs because behaviors followed by reinforcement become more likely to happen again.
