I'm not sure there is such a term, but I heard it from friends describing my dance hihi.

You too are doing the same. In a way I could see how different body parts are mimicking different tunes in a nice flow (as if you are drawing calligraphy) and that being nicely mirrored (symmetry).

You could smile more, then it would be even nicer, which you did sometime. But I get it, we could be too focused on the music that we forget to smile 😁