Try to “catch your dog doing something right” as often as possible.
One of my biggest pet peeves with most dog owners and parents? When the authority figure (owner or parent) more or less constantly says, “No!” (as in, “Don’t do that!”) – and only rarely says, “Yes!” (as in “I like what you’re doing! Keep it up!”). It’s no fun to be around, it’s discouraging to dogs and children alike. Worse, it doesn’t offer the recipients of the message any information about what they should be doing to make their owners or parents proud and happy (or at the very least, happier).