(Proverbs 12:23 KJV) A prudent man concealeth knowledge: but the heart of fools proclaimeth foolishness.
A lot of people talk too much. Yes, my hand is in the air. Although I am capable of sitting all day without speaking to anyone I also find myself being embarrassed by my verbosity at times. Why do we do that? Part of my problem is my sense of humor. I always want to throw in a one-liner. I want to be clever. Sometimes all I do is “proclaim” (7121) “foolishness” (folly NASB) (200).
To proclaim does not mean to just speak or say. It means to cry out loudly. You might be able to substitute repetition for volume because there are times when I repeat myself until everyone knows I am a fool. I am sure you have heard the comment about having one mouth and two ears means we should listen twice as much as we talk. To get that right we probably need an ear on each finger instead of the sides of our head.
So? Give people a chance to express themselves. Not only is it a matter of courtesy but it seems to mean we will be less embarrassed. That has to be a good thing.