고양이만 아는 비밀, 2부 중 1부

As a matter of fact, two researchers did some experiments and found strong evidence that we cats are sensitive to human emotional cues. They found that the cats behaved differently when their caregivers was smiling compared to when they were frowning. When faced with their smiling companion, a cat was much more likely to show affectionate behavior such as purring, rubbing or sitting on their lap. The cats also seemed to want to spend more time with their smiling human friend than when he or she was frowning.