Josie tells me when she wants a treat. About 2-3 times a day, she'll run up to me and start meowing and talking to me . . . then she runs over to the fridge (the treats are on top of the fridge) . . . and she meows as she looks up there . . . she knows where her treats are and she knows when she wants one! I also give her the hairball treats and they seem to be working. But she likes a variety of soft & crunchy!