Dogs may not seem too bright when they start chasing their own tails, but in many ways, they are intelligent creatures. In particular, they are very socially aware, both with humans and with other dogs. A lot of studies have shown that they can feel human emotions; in fact, they could differentiate between happy and angry faces, and even be jealous. However, it seems that they can also feel if a person is not trustworthy; Once a dog realizes, it stops following the signals it gives.
It has been known for many years that dogs understand what it means for a human to be pointing at something. For example, if the owner of a dog points to the location of a ball, stick or food, the animal will run and explore the place to which the person points. In addition, the latest research shows that they are quick to find out if these gestures can be misleading; in a study published in the journal Animal Cognition, a team led by Akiko Takaoka of Kyoto University in Japan introduced 34 dogs and three separate rounds of aiming.