Judgment clouds our sight: it's like looking at a view through a dirty window. This technique gets us comfortable with just looking at things without judgment allowing us to be present with what is.
Try just looking at a flower or some other small thing for a few minutes. Don't say 'beautiful' or 'ugly.' Don't say anything. Don't bring in words. Simply look. The mind will feel uncomfortable; it would like you to say something. Try to just ride through this feeling. Try to just look.
Start with neutral things, things that don't hold any charge for you: a rock, a flower, a tree, the sun rising, a bird in flight, a cloud moving in the sky. Only when you have gotten used to the technique should you try it with people. As you begin to look at people without judgment, you will see more clearly and with more compassion.
By opening your vision, your heart, and your mind in this way, you will find a greater flexibility, openness and receptivity within yourself to the world at large.
Remember, just look, without judgment; just be present with what is.