What happens next?

How to make a clicker for dog training
Find a small aluminum jar lid.
The lid on a jar of baby food or the lid to a small mason jar will work. You want a lid that's around 2-3 inches (5-7.6 cm) in diameter.

Select from:
(A). Place several small balls of white food in a small bowl. The balls of food will give your dog treats.;
(B). Place the jar lid face down on a flat surface. The underside of the jar lid should be facing up.;
(C). Remove the lid and expose the food inside. Once the lid is removed, you'll be able to see inside the jar.;
(D). Make sure the lid is clean before you put the baby food or puppy food in. It needs to be as clean and free of dust as possible.;
(B).