What being judgmental is: Judging someone over something petty or something they cannot actually control.
What using right judgment is: realizing that gut instinct that this situation is OFF is not always wrong and you should really keep it in mind.
What using "judgment" as a Christian should be: Acknowledging your faith, beliefs, what is and is not sin, and living your life by this. If someone asks for you view, you give it honestly, as you do not want to condone sin. Otherwise, Jesus told us to find the log in our own eye before pointing out the speck in another's. everyone's got their thing.
ew that girl's hair is ugly - judgmental
That guy just put alcohol in the punch, I shouldn't drink that since I am under 21. - right judgment
Christian judgment: "Hey Jazzy do you think if I take a candy bar from the store that is on sale anyway is that bad?"
"Any form, lesser or not, of stealing is a sin. We should not take from people unjustly." - judge of the sin also not the sinner.