I remind myself that
"I am not the boss of the world" when I catch myself silently judging someone.
It gets my head out of my a** in the moment. It allows me to give my head a shake and let the judgement roll away.
Being judgemental is a big struggle for me and I don't always catch myself but when I do recognise it in the moment and call out the thought, it feels like a relief to let it go.