This scene is crucial because you learn specific “sweet spots” that will really drive her to the point of pure ecstasy.
One Important tip to take in is to, listen to her body. She will react to subtle things you do with where you place your tongue and even where your hands are place and what they are doing to interact with her. Even her hands and her eyes may guide you to what is work and what may not be working. Doing this correctly will allow you both to really become one and it’ll be a natural free flowing time of fun and pleasure to the point when you KNOW whats working simply by how her breathing and or her body is moving and contracting.
When you utilize this it’ll become like a second nature instinct for you to grasp and you wont even have to think about what steps to do, it’ll just flow and feel right.