Puppy/dog trick suggestions needed

[s-cubed]

3. Agree with other posters.

Come is crucial. Stop means stop, sit, stay. Leave it is also very important: all my dogs have learned to generalize this to mean whatever the dog is interested in must be ignored, be it food or another dog or a bicyclist. You start with a small treat in the palm of your hand say leave it. The pup goes for it, but you can close your hand faster. After a few tries the dog will look away in frustration. At that point you praise and give the treat. Progress to something on the floor that you can cover quickly with your foot. Eventually you can drop food or throw it. Progress to toys etc.
Sounds like your pup is doing great!