Give It Silence

I want to be clear. We should not always keep silent.

As Christians, we have a responsibility to bring Scripture to bear on the human experience. The Gospel forever changes the heart, producing a natural resistance to injustice, hatred, crime, lies, deceit, and theological error.

However, in some areas, I suspect that silence is more effective than speech.
An example of this would be public boycotts.
While I don't willingly throw my money at companies and causes I can't in good faith support...