An echo is cool, but it’s not that useful. Shouts across a canyon that only want to hear themselves repeated at a distance, and softer, don’t tend toward the meaningful. “Hello!” “Hey!” “Woo hoo!”
I should probably stop “echoing” people in group conversation. If we’ve heard it from someone else already, my echo only contributes a fainter and less clear version. Worse, it probably pulls attention away from the impact someone else intended and toward whatever “echo” effect I’m going for.
If you already said it, I will endorse it or modify it or disagree with it outright. I’ll try to do more than simply echo it.
YoRocko! 
I find Alexas quite useful… useful… usefulll
I tend to try to repeat phrases if I am not sure I can say them. Just me, but a good guide for my confidence.