Make sure you feed your dog at regular times every day as this makes bathroom breaks regular as well. Feed your puppy 2-3 times a day.
As soon as he is finished eating, take him to a grassy “potty area”. Speak the words “go potty” or “go in the grass” before and while he is eliminating. Be sure to praise him when he is done.
What you are doing is building word associations with the dog that will allow you to encourage his potty activity on command.
This comes in handy when you and your Boxer are at unusual locations and at pit stops during long haul travel. It also saves you from cleaning unwanted fecal material off the carpet at home.
It is a good idea to train your puppy to use a place where you can easily clean up and dispose of the droppings into the sewer. This is because worms that infect dogs and make them sick get spread around through the eggs or larvae found in the feces. Some, like the roundworm, can also infect children.