December 4th excerpt:

Almost in time with his hook falling, Sam stiffened. An icy cold shudder ran up his neck even as the warning tingle started to burn, and the sound of the front door being tampered with almost screamed at him. Never had Mrs. Hudson incited such a strong reaction in his knack, and even Sherlock was dulled down compared to it.

Sam whirled in place. “We’ve gotta go,” he said hurriedly, trying to think of any entrances Dean kept close to the end table. “We’ve–”

May 17th excerpt:

With one hand locked onto the edge of the pocket, Sam pushed up on the flap. Between the brothers, he would be able to know if anyone was about to look at him. Over time, the ability was growing stronger and the longer he spent around friendly humans, the more he realized it actually differed, depending on the human and the circumstances.

If a person glanced in his general direction, it felt like nothing more than an absent chill across his neck. Goosebumps and the hairs raised, Sam used to brush off the sensation before he knew what it was telling him. Direct eye contact from a friendly humans like Jacob sharpened the impression, putting weight on his neck.

Neutral humans, or people who could be classed as purposely dangerous, gave him a feeling of burning. It hurt, it sent pain down his nerves just like a hot brand pressed against his skin, and it took time to wear off.