Peace

The book of Proverbs is wonderfully down to earth.
Like one who takes away someone's clothes  on a cold day, or like vinegar poured on a wound, is one who sings songs to a heavy heart. (Proverbs 25:20)
There's also  warning that it is not a good idea to speak loudly first thing in the morning and another that it's not good to trick someone and then say you were only joking. As a morning person I find the first of those a challenge.
Proverbs has a lot to say about angry people. Rescue an angry person and you'll probably have to do it again. It's better to be long tempered than to be a warrior. There are several warnings about breaking confidences. 
I guess peacemaking is about lots of small decisions. 
I guess wisdom is about lots of small decisions.
It's about how I speak to the people I live with, how I am with my neighbours, what I do at work, how I treat those who are 'different' to me.
It's about giving good feedback and receiving bad feedback well.
It's about speaking directly but gently.
​See if you can make some wise choices today. They may make more difference than you could imagine.