Thank you for the opportunity to help you with your question!
Interpersonal intelligence is the ability to understand and interact effectively with others. It involves effective verbal and nonverbal communication, the ability to note distinctions among others, sensitivity to the moods and temperaments of others, and the ability to entertain multiple perspectives.
A well-developed interpersonal intelligence plays a substantial role in such success. From a psychological and neurological point of view, the connection between interpersonal intelligence and the brain has been explored for generations; damage the frontal lobe, as was once done in the case of lobotomy patients, and you damage that person's personality and her ability to interact well with others. Interpersonal intelligence allows us to affect others by understanding others; without it, we lose the ability to exist socially. Please let me know if you need any clarification. I'm always happy to answer your questions.