Definately!
I just say "let's go!" and he's all over the house. Jumping, kidney beaning and talking the whole time. Then he sits by the garage door and waits for his leash.
He also knows when it's time for the boys' baseball games. As soon as he sees the boys in their uniform, he also starts the jumping and kidney beaning. He LOVES going to the fields.
I also have a question, does your boxer know when the kids should be home from school? Once in a while my boys will go to friends homes to play, so I don't have to pick anyone up from school. Rocky will go from the door to me and back looking for them. Cracks me up.
~Elizabeth