Aquarium

Olivia has a toy aquarium attached to her crib that lights up and makes bubble noises while plastic fish swim in front of her eyes. She loves this aquarium and we turn it on for her every night. Occasionaly she would accidentally kick the power button with her feet but she hadn't put 2 + 2 together and figured that kicking the button makes the aquarium turn on or off. In the mornings Chris and I would listen for her to wake up; usually we heard babbling or sometimes crying. But twice this week we have heard her aquarium's bubble noises through the baby monitor. Is she intentionally turning it on or is it still a happy accident?