I tried some of this self improvement today, as I had a meeting with my boss and HR on flexible working hours and a payrise, I think it worked.
It started out with us entering the meeting, my boss and the woman from HR were already seated, so I pulled the chair to the edge of the table so I was sat nearer my boss at 90 degrees, I think he was impressed with this tact. We started discussing the topic at hand, and every time he crossed his legs I mimicked his actions, trying to build up rapport with him. He crossed his arms, I crossed my arms, he gave me some strange looks, so I could see I was having an effect on him, I think he was just impressed with me taking the initiative.
After a while, I needed to go up a notch, as I think I stood a chance for going for double digits on the payrise, so every time he asked me a question I just grunted at him, I could see him looking at the women from HR more and more as each question arose, so I guess they had some secret signal going to negotiate my payrise without talking numbers. When I did need to answer his questions specifically, I made sure to leave a good long silence before shouting my answer at him, sometimes I think this took him completely by surprise as he was half was through asking the next question as I shouted the answer to the previous question at him, but sometimes he waited patiently for me to finish counting to 30 aloud before I shouted it at him (I'm not so good at counting in my head).
After this, we moved onto the discussion of flexible working hours, and this is where I think I definitely secured the deal. We were discussing me finishing work earlier each day, providing I start early, HR were initially against this idea, but I pulled out the master trick, sealing the deal. I grabbed my bosses hand and stroked it while staring at his face for 2 minutes without saying a word.
He then told me to go home, and HR would be in contact, so I think they must now be discussing my payrise and working hours before coming back to me with an offer. I wasn't aware the company doctor had a say in my payrise though, but I guess he must have as they've told me to visit him before they make their final decision.