It’s so touchy
Put metal thimbles on all your fingers . Place the flute in playing position. Start to move your fingers slowly, touching and rubbing the flute so as to produce a wide variety of metallic sounds. Move the fingers along the tube and the keys of the flute. Take your fingers off. Pause. Touch again and rub and strike the thimles against each other. As you draw your hands closer together, they will move with increasin difficulty. The fingers start to interfer with each other until they can’t move anymore and your hands remain motionless.