I'd say she is recognising him, they are often smarter than we give them credit for! I recently got some pics printed out and stuck some on the fridge. There's a couple of our dog, one of the dog & DD and one of me & DD, she points to us all and oohs and ahhs over them and goes "oof oof" at the ones of the dog. She loves pointing to all the photos we have framed around the house.