5 Be wise in the way you act toward outsiders; make the most of every opportunity. 6 Let your conversation be always full of grace, seasoned with salt, so that you may know how to answer everyone (Col. 4:5-6.) NIV
Whenever I think of that verse, I think of a story, perhaps apocryphal, told about John Wesley. Supposedly, a woman approached Wesley and said, "I think I know what talent God gave me."
He said, "Yes, and what is the talent that God gave you?"
"I think my talent is to always speak my mind."
To which Wesley replied, "I do not think that God would mind if you buried that talent."