another kind of resonance?

have you ever been talking to someone who echos everything you say as you are saying it? almost like the game your older sibling would "play" with you (against your will) when you were kids; copying what you were saying in time with when you were saying it.

the only difference is that these people (grownups, who are not your siblings) aren't trying to annoy you - i'm not even sure if they are aware that they are doing it. it's as though they use this technique as a tool to follow what you are saying - like kids that run their finger under the words as they read, mouthing the text to themselves...

...except those kids don't annoy me or make me feel uncomfortable when i'm talking.