Judging uses a tremendous amount of our energy and inner resources. Being non-judgmental uses much less, nonetheless there is still energy drained when we trigger that mechanism to stop our likely overwhelming social conditioning to judge.
Another option is to move beyond being judgmental or non- judgmental and simply learning to observe without opinion. Difficult, yes initially very. Impossible? No. Try it for thirty minutes one day. Choose a location like a busy street or perhaps sitting in a crowded shopping mall.
Attempt to have no opinion on the physical features or attractiveness of other people (and yourself for that matter), the selection of their chosen attire and the attitude their gait projects
To the extent you can remain in this mind set; to that degree you will experience a remarkable calmness and serenity. Nothing will bother you, because you have removed that which is susceptible to outside influences.
When you don’t judge, you are also relieved of the judgement of others. Unfortunately the harsher the manner in which you judge others, the greater the burden of judgement that you will necessarily feel upon yourself.
Choose a third option, to simply have no opinion! Your senses will still naturally record incoming stimuli but with an absence of opinion. Be aware of how centered and undisturbed you will feel at these times. Just try it.