Posing. I shit you not, posing.
Most of what I learned when it comes to photography, from composition to lighting, was learned in a photoshoot as a model.
I kept an eye on how the photographer was working. How he told me to pose. The angles. The lighting. And in the end, he allowed me to watch as he edited the shoot in Lightroom.
I didn’t know much about photography before that. Just the basics. After? Oh. Man.