Emotional intelligence (EI) is the ability to identify and manage your own emotions and the emotions of others. It is generally said to include three skills: emotional awareness; the ability to harness emotions and apply them to tasks like thinking and problem solving; and the ability to manage emotions, which includes regulating your own emotions and cheering up or calming down other people.
With high EI, you can succeed in many areas of your life. Your close relationships can benefit from knowing how to read people’s feelings, regulate your own emotions (especially anger), and understand what you're feeling, and why.
Here is the video on the 8 signs of High Emotional Intelligence