Place treat in left fist as a distraction, and raise left fist (with treat) to chest level.
Click/Treat when dog looks into eyes. Toss treat onto floor to reset.
Repeat 8-10 reps.
Increase level of distractions (by lightly shaking left fist) to reset as the dog learns to look at your eyes.
End with “Finish” and Treat.
When the dog has learnt the behavior, add a verbal cue “Look”.
Progress to higher level of distractions with more people in the room, or with other handlers doing the exercise.