Scroll inertia
Scroll fast.
She gets thrown when the page accelerates, catches the edge of a heading, and recovers when you settle.
A long section
Just keep scrolling. The faster you fling the page, the more she struggles to hold on.
When you stop, she eases back to her seat.
Another section
Try a sharp flick and then a slow drift.
End of page
You're done. Scroll up and feel her pull the other way.