Kahl sheathes his blade, and shoves and kicks his way through a swarm of smaller goblins and hobgoblins to get closer to Gorman.  A careful glance gleaned Kahl a short description of his warlord to-be : older and weaker.  But both of these brought wisdom and caution, much needed qualities that helped him get past the brute strength of the Orcs.  If he was going to be able to maximize his own performance in the field, he needed a leader that could see the way he saw, or else he'd be working under a banner only in name.

He doesn't verbalize his allegiance, though; after all, the much larger Orc had chosen him.  Bragging would only bring suffering far earlier than needed.