As cute as that sounds, for dogs, reducing separation anxiety is counterintuitive.
The more emotional both departing and returning is. The more it hurts them when you leave, the more separation anxiety develops.
In an ideal world, when you leave your dog for the day, saying nothing when going and a professionally distant "greetings puppy" when you return will reduce anxiety for a dog when left alone. This doesn't work by itself; you have to teach them to be alone slowly and carefully.