Colossians 4

Let your conversation be always full of grace, seasoned with salt, so that you may know how to answer everyone. v.6

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Salt makes everything taste better.  Sometimes you can add too much salt and it ruins the food or sometimes you don't add enough or any and it doesn't turnout what you were hoping for.  So our words should be satisfying to the soul.  Our speech is to be full of grace and seasoned with salt. One must discern how to say hard things when needed but also do so in grace.  Sometimes it's hard to call someone out, share bad news, say a hard thing but it always is better than regretting not saying anything at all.  Discernment of when and how is still key when talking with others but notice the rest of this verse says "so that you may know how to answer everyone."  it's good to practice communication daily with those around you of all types of personalities.  Remember grace is undeserved favor and we should be that in our speech as well  The rhyme "sticks and stones may break my bones but words will never hurt me" is not necessarily true.  Our words can hurt, so let's watch what and how we speak.