I have my own personal thoughts on this, so take this how you will.

Think about times where you have been angry at how people miss handled situations with you and try not to put others in the same boat if you ever find yourself in a flipped position.

Putting yourself in another person’s shoes also helps. If somebody is doing something that you don’t agree with but you might do if you were in the same situation as them, then you should probably cut them some slack or at least respond proportionately.

A really big one was a lot of people is stress and having trouble dealing with their own problems. A lot of the time people will act much harsher and disregard others when they have tunnel vision from their own issues. Being aware of your own current mindset can be helpful for realizing that you might need to take a step back and breathe before committing an action or saying something that you might not mean later.

It all basically comes down to the Golden rule and being aware that other people exist and have their own problems and perspectives.