This offers a different dynamic where your dog can pick up on the letters and the crouching movement. This will help to build up a lot of the successful reps and with practice their response to it in more challenging situations should become stronger.

Exercise: 

• Keep the long line at a reasonable distance, not too far out. (Or off lead where it is safe)

• Crouch down and and recite the alphabet whilst looking like you’re popping treats on the ground. 

• They will soon pick up on this pattern and return to you as a reflex to the alphabet.