I’d love to hear about your quirky habits.
One of mine is that when I’m out in nature I tend to collect cool looking rocks, sticks, cones etc. My window sills have become a geology exhibit (and I have zero clue about what I’m collecting, I just go by “ooh shiny”) and more often than not I’ll have small rocks in my pockets, bags, backpacks etc etc
I sing a lot around the house, but not just regular songs. I sing about what I’m doing or sing about my cats/wife, using the rhythm and notes from famous songs but with my own improvised lines, rather than the official lyrics