 You put moist food in two or three of these. At first, make it easy for the cat to find, but similar to what I was describing before, if it's moist food, you could do the same thing and put them in different places around the house, up high as well, so the cat has time during the day. Cat gets a little hungry, the cat can investigate and quote-unquote hunt, even indoors, for this food. It's hugely enriching for cats to do this.