For a tone, most of the area of the fingers and the edge of the palm will contact the drum. Move your hands towards you until your knuckles are just off the edge of the drum. Your fingers themselves should be over the drumhead. You strike the drumhead with all your fingers flat at the same time.
With much success in recent years, Shaw too shows no sign of resting on her laurels and continues to create groundbreaking work commissioned all over the world. Watch this space!