Often times new models ask about posing. How experienced models know how to pose, where they get their poses from, and other similar questions.
For me, it’s a combination of practice, and prior experience in dance, cheerleading and gymnastics. I’ll get to the practice in a minute. Dance, cheer and gymnastics all helped me be aware of my body, what I was doing, and got me in the habit of doing certain things (like pointing my toes). All three of those have helped posing almost come naturally to me.