the above video is by Marianne, founder of the "A Cup of Empathy" channel on YouTube
Cup of Empathy - Nonviolent Communication Online Courses & Sessions

"Nonviolent / Compassionate Communication" was originated by Dr. Marshall Rosenberg, PhD (Marshall Rosenberg - Wikipedia)

It includes four types of communication.

He used the words "observances", "feelings", "needs" and "requests":


"Observances" (Experiential Statements): 

Sammy: "Oh, I didn't do the dishes as you asked. Sorry!"


"Feelings" (Emotional, Sensory Statements): 

Gloria: "I feel badly about that. You told me you would yesterday."


"Needs" (Values, Needs, Yearnings Statements):

Sammy: "I know you value cleanliness. I also. I'll wash these now."


"Requests" (Asking Statements): 

Gloria: "Thank you. Please, let's wash together."

Sam: "Okay!"

If you ever are involved in a conflict or heated argument, be sure to express and achieve the above with whoever you're with somehow (kindly), and generally or somewhat loosely in the same order as listed above, to safely and efficaciously diffuse anger, dissuade people from threatening others and to make peace.

From Marshall's book 'tis good to also be mindful and present with others (like we would want too).

Of all that I've experienced and done in years of professional service and also with family, friends, and strangers alike the preceeding has ever and always helped.