There's no sense in being precise when you don't even know what you're talking about
Communication skills are what separates humans from most animal species, and what has contributed to the advancement of civilization through the years. If there is a lack of communication between two people then this can lead to misunderstandings or even signs of aggression, and the ability to communicate well is a sign of a great leader and articulate person. Communication does not always require words, sometimes it can consist of body movements and facial expressions instead.