Train looked up at the voice, shoulders going tense and defensive for a moment before he forced himself to relax. Even if she was going for a weapon he could always defend himself and run away, and it didn't sound like she was interested in attacking him.

"Woah! You surprised me!" he chirped brightly, to cover his jumpy reaction. "I'm a bounty hunter anyway, I was going to look for a job after I got a weapon. But I haven't eaten in a while, so..."

Obviously his stomach comes first, that's just logic.