Speak to Keldran in Orgrimmar.
Be still, [class], and allow me to share with you something important to our people, but far from obvious.
We are a proud race, and the war with the humans tried even Thrall's great patience. You see, our Warchief is wise and prudent, and he continues to put his people first. Ultimately, he is a diplomat, and in his time with the humans he learned much of their ways.
If the tale I've started piques your interest, then find Keldran near the western exit of the city. His hovel is there.