Every time you “judge” someone, require yourself to write down two plausible “excuses” for why that person did what he did.

You also might want to remember this:

The Baal Shem Tov says that Heavenly Court does not judge a person after his passing; rather the person is made to forget all he did while he was alive – both the good and the bad – and then he is shown an entire life story, and he’s asked to judge the life he saw. After the person renders judgment G-d informs him that he just judged himself—and the verdict sticks!

Every time you “judge” someone, require yourself to write down two plausible “excuses” for why that person did what he did