"Do not judge ..."

Christians who stick up for the Gospel are often called 'judgemental' by those who wish to be their enemies - as they know all too well from their master that Christians are not supposed to be 'judgemental'. It is a clever tactic and can be quite offputting but perhaps I can help out here.
If you are speaking out from a Scriptural base; you are not being personal; you are acting out of love and you are not embracing hypocrisy - just go at it full steam ahead!
I personally believe that 'being judgemental' in this context refers to not puffing yourself up with vainglory whilst thinking yourself a better person than the next man.
After all, when I was a Magistrate, I had plenty of 'judgement calls' to make and the advice above is simply how I tackled the process.
The Bible allows us to apply Law - this clearly entails a legitimate form of judgement.
The argument of 'judgementalism' is spurious!