Greer may not be the most intelligent of beasts, but he's certainly very good at deciding who's dangerous and who's not. Quite frankly, it's everyone, including The Lord himself. He protects The Lord fiercely, and will even bristle at the presence of The Prince or any of The Lord's appointed servants. He's quick to react as well, and will often attack without thinking or by the command of his master. He's incredibly wary and takes no chances when it comes to his master's safety. He is a noble creature, if not particularly smart or cunning, and would gladly give his life to save The Lord (or anyone the lord commands him to, for that matter). Although he's very much into self-preservation, obedience and fealty to his master is much more important. Especially when he gets praise in return.

Greer is also uncommonly curious and attentive. Although he sticks to his master's side at all times, his mind will often wander to the other words of people. He can't understand them very well, but he's become adept at mimicking them, in much the same manor as a parrot, and will gleefully bark what words he 'learned' to his master whenever the Lord bids him to do so. He enjoys talking, even if he doesn't understand much of what he's saying. He likes the sound of it. Perhaps some of the Lord's own vanity has rubbed off on him.