I have a mini schnauzer cross that can be difficult to read sometimes. Luckily, her needs are pretty simple -- food, water, outside, and "Help, the kids are crazy!" My Catahoula, on the other hand, is an excellent communicator. If I don't get it, he'll keep finding different ways to tell me until I do. He will bump me with his nose and then walk toward what he wants, checking to make sure I'm following, and will lead me right to it. He has been known to throw toys at the back of my head if he wants to play and I'm ignoring him. When there's a small critter outside that he'd like to chase, he'll lead me to the door and stare at it, shaking and whimpering, until I tell him no. He's been with us for over a year and is 3 years old now, and I haven't yet misunderstood him.