Do not judge your fellow until you have stood in his [her] place - Pirkei Avot
This writing prompt is one of the ones for #blogElul by Ima on the Bima
I am guilty of being too judgemental. I try to avoid it, but as soon as I hear an opinion being formed in my head, bam! I am pretty sure it's probably judgemental.
I remind myself of the quote above, and similar ones about giving people the benefit of the doubt. My Yetzer HaRah thinks that the friend who doesn't call is being selfish, but I realize there could be a million reasons they don't call, given they have kids too.
I also remember learning that when we judge others harshly, G-d will take the same position with us.