If there’s conflict between two people in a group, one thing an amiable person can do is help decrease, or mitigate the tension. “Mitigate” means to reduce or decrease the effect of something negative. Sometimes that negative thing is more tangible, like a migraine:  medication can mitigate the pain of a headache. Sometimes it’s a negative emotion or feeling. Have you ever given someone flowers when they’ve had bad news, because you want to mitigate their sadness?

Example: “Construction workers are often required to wear earplugs to mitigate the noise of the machinery they operate.”