Happy Thursday…riddle of the day: What is always in front of you but can’t be seen?

Olivia by Ian Falconer https://www.youtube.com/watch?v=fWNXmelCpjQ

Olivia is a high energy little girl with a big imagination that often wears her mother out. Her family keeps her occupied by visiting many fun places from the beach to museum, but even then Olivia has too much energy for her mother to manage.