He's newly arrived. Or so Robb assumes, for he does not recognize the man's face and Robb likes to think he's a passing familiarity with those aboard. It was the same here as it had been in Westeros, with his bannermen. Robb served with the others on the security team, cycled through the ship, and he took note of the faces he passed. His fingers twist into Grey Wind's fur, soothing, and he inclines his head.

"Then allow me to introduce myself. My name is Robb Stark, King in the North in the land of Westeros, and my companion is called Grey Wind, and he means no harm to you."