“Some freshman,” you say without skipping a beat. You grin boldly and give your stomach a hearty slap, causing it to lurch and gush audibly. Surely another predator like this naga wouldn't mind you in the slightest.
The naga grins broadly and leans over, rubbing a hand across your sagging belly. “Oooohhh. Nice.” However, a deep groooo echoes up from her own stomach. She flicks her tongue at you, and begins to encircle you with her tail. “Say, you wouldn't happen to know where I could find a nicely stuffed meal of my own, would you?”
You quickly realize what's about to happen. You know that if you try to fight off a naga, you're going to lose. You might be able to bluff, or you might be able to bargain. You have to think of something if you are to avoid a trip into the serpent's rumbling stomach.