Maybe if you use the words “side part” and “hair flip”. Something like:

"A woman with extremely long, flowing hair flipping it to one side, creating a smooth and elegant side part. Her hair moves gracefully, with strands gently falling over her shoulder as the light catches the waves in her hair. The scene is soft and serene, with a focus on the effortless beauty of her hair transformation."

Tip: you can use AI to generate prompts for AI