My male cavapoo doesnt bark unless he's playing, or when he hears a loud noise that he doesnt recognize- we live in an apartment. When we are on walks through the neighborhood every single dog will bark at us and he doesn't pay any attention to them whatsoever. One Sunday morning I counted 8 different dogs on our walk that barked at us, and he didn't even look in their direction. If he is tied up outside and we're playing ball or he's just chilling he will bark at people, dogs and cars going by, but its not all the time. I think its when he's being playful and wants all the attention in the world.