Your puppy is all grown up. At two years old, your dog is similar to a 21 year old adult human. Now you start adding seven human years to one dog year for a comparison.
Adult dogs will pleasantly surprise you by learning new advanced commands and tricks. They are eager to please, and you are now more like "partners." Out and about you can both socialize with all kinds of people and dogs. Advanced training will help them reach their fullest potential.
Dogs that have been raised to be service, police, search and rescue, and guide dogs are now prepared to start working, just like a college graduate.
This is great time to consider giving your dog a fun job to do. Most dogs love to be given the opportunity to work at something alongside their person.
You can consider agility training, therapy dog work, or advanced obedience.
Relax and enjoy life with your well socialized, wonderfully well behaved K9!