He knows

I came home yesterday to a clean, happy toddler.  His hair wet, a big smile on his face. He was looking out the window looking for me.  I was in the doorway to his room when he noticed I was actually behind him.  His smile got a little bigger as he slapped his hands down onto the ottoman of the chair.  He said “Da-da!” and giggled.  He knew I needed to see and hear that.