Alertness

Usually, Madam sits on a leaf, preferably head-down, without moving a muscle.
But sometimes, when we make loud noises, she actually turns her head and ... looks at us.
I do not know, whether she actually has the ability to hear sounds, or if this is just a reaction to the sound-waves that change the air-pressure around her. But it is kind of eerie, to be starred down by this creature, as if she wants to tell you "Don't get on my nerves, be quiet!".