How Does That Go…Again?

In the hallway, a young mother was waiting for someone by a window, with three very young children with her.  As I walked forward, her little boy got up and started pointing at the harp.  I then asked him for help, since I could not remember just how to play ‘Twinkle Twinkle’.  They sang the song for me.  I then played the tune as they sang along and I thanked them for helping me remember it.  The mother was laughing and having a good time.  Later on I met them again as she was taking them to the bathroom, and I noticed how she waited to close the door until I was totally out of sight, just looking at me, still smiling.