Social Intelligence (SI) is defined as the capacity to perceive, interpret, understand, regulate and respond appropriately to people in their environment. In short, Social Intelligence is the ability to interact effectively with others. Social Intelligence is a result of being able to read emotions, body language, facial expressions, gestures, tone of voice, non-verbal communication, and the way we behave towards others. These things are often not consciously recognized, however, they affect how we feel about ourselves and our relationships.