Find the right opportunity to practice. When the cat stares at people, it's time to ask for help. At this time, it is the opportunity to practice it to remember names! Call the cat by its name. Even if cats don't know what you mean, they usually get close to cat slaves.
Let cats associate their names with happy things, such as calling their names before eating or playing, let them know that cat slaves call their names = there is a merit attack, and let cats have a good impression on their names and keep them in their minds. Just repeat it several times.
What if I have more than two cats? Do the exercises separately according to the above methods. The point is not to take too similar names to avoid confusion between cats.
If the shovel wants to know if they remember their names, just call one of them when the cats are around and see if it will know as long as it reacts.