Cats make biscuits, or knead, for several key reasons rooted in instinct and affection. First, kneading is a behavior that starts in kittenhood when kittens press their paws on their mother's belly to stimulate milk flow during nursing. Adult cats continue this behavior as a comforting, self-soothing action that signals happiness, contentment, and trust. When cats make biscuits on people, it often means they feel safe and bonded, showing affection and marking their territory by releasing scent from glands in their paws. Additionally, cats may knead to prepare a comfortable resting place or to relax their muscles. This charming behavior is a sign of a cat’s comfort and joy.