If we profess to be Christians, followers of Jesus, then our words and our actions should reflect our love for Jesus and our desire to honour Him in all our ways.
Whether we are engaging with fellow Christians or those who might not believe in Christ, with the help of the Holy Spirit, we should choose our words carefully so that it’s not crude and ungodly but will somehow bless the other person.
This doesn’t mean that we have to lie to others to be nice, rather, whatever we speak, will be in love, to build the other person up, whether we are correcting them or praising them.