Spike snarled at the sight of the crucifix, an instinctive reaction even though it wouldn't hurt him anywhere near as much as a bullet or - apparently - trying to hurt Dean. His hands clenched into fists at his sides.
He said nothing. Enough sense had seeped into his brain to stop him taunting Dean with a comeback that would have Dean stepping up to finish the job right now. He just flopped down onto the ground, leaned back against the wall and rested his forearms on his knees, looking as hopeless and as harmless as he could. Get rid of the Demon Hunter, and then he could go and try some doors.
He looked up at Dean when he didn't move and flapped his hand again impatiently. "Go on, then."