stand still, you might hear the silence

Three people mistook me for a mannequin today.
I was busy watching as Seiji Ozawa enthusiastically conducted an orchestra whilst his grey chia pet hair flew everywhere and his tiny hands rapidly echoed silent instruments. He was magnified on a giant screen in the stereo exchange across the street, I saw the sound but heard nothing no matter how still I stood.
Yesterday I did so much ice skating that today my legs felt foreign. Lucky for me I got paid to stand in one spot for 2 hours and watch as Seiji swung his arms to a silent song.
No, I am not a mannequin, inside I'm dancing to a song I can only see.