I honestly believe they are communicating with us telepathically. They look at us intently, think "I'm hungry, feed me." And you look up from your phone and look at them staring at you, and you say "Aw, sweetie, you're so pretty! Why are you staring at me? Oh, look at the time! Are you hungry? Let's get you something to eat!" And then you do it.

In her mind, she telepathically ordered you to feed her, and you did. Obviously, telepathic communication works, especially after it's worked in multiple instances.

Which also means that if she orders you to do something, and you don't, it means you are just being an obstinate little bitch.