"Alright."
Dean heads over to the instructed rock, which would meet the wrath of his fingers! Perhaps, before they break or get severely injured. Dean brushed off the thought of breaking his fingers, but it was possible. He then came to the wall and started slamming his right thumb into the wall, with great force. Although it was sore, Dean had to do it for the sake of learning the style. Whilst slamming into the wall with his right thumb, Dean left hand would hold the paper, which was informative and had the knowledge he needed. So he simultaneously studied that paper whilst slamming into the wall. After his right thumb became sore enough, and he knew it would break if he pushed it, Dean switched to his right index finger. Slamming it into the wall, much like the movie, Kill Bill Vol.2 (You must have watched that U_U ). This process wasn't a fast one, but it would help. As he finished off with his Index finger, his middle finger was next, the one he didn't want to break. It was the most difficult to slam into a concrete wall, as it was the longest of all the fingers. This finger took more time than the others. Next it was the right ring finger. Also pretty sloppy, Dean had to focus hard to keep it straightened and hit the wall at the right angle every time. Last but not least on his right hand, was his pinky finger. This one was easier to slam into the wall, and from here on out, it became far easier for Dean.
After finishing with his right hand, he stretched it quite a few times, spoke some crap and made a joke, then switched the paper over to his right hand, and start with his left hand. He did the same process with his left hand as he did with his right. This also, took quite some time to do. When he finished, he cracked all his fingers, and looked towards Cas.
"What's next?!"