As explained in the comic, shuffling is the act of moving around your space with curiosity or a willingness to engage with your things for the sake of pleasure or interest. It's an art. I had an ex who did it a lot and I was always jealous because I never had a space that I felt comfortable enough to shuffle in, but these days I finally do! I don't often give myself the time to shuffle, but I've been trying to stay up a bit later and that's a great time to putter. I intersperse shuffling with tidying up, but - make no mistake - they are not the same activity!