What's your favorite minor detail?

Just coming from a post about biggest nitpicks, now I want to know the littlest thing that lives in your brain.

For me, it's right before the start of Out For Love. Carmella flicks her fingers dismissively and they make the sound of castanets. (I really just love her coding.)

Also, right before Respectless when Zestial is saying to stand down, Velvette cuts her eyes two ways and they sound like knives scraping.