Not sure about the "top" fundamentals, as they all matter. Here are a few that everyone should learn, as they are very important:
1) Looks
- It's true; looks matter, a whole lot.
2) Slow, controlled, sexy vibe
- Cannot overstate this enough. Staying in control of your movements and moving slowly and deliberately is the most important fundamental. Learn to control your emotional state to one that keeps energy in, and you'll see a large improvement in performance.
3) Voice/Tone/Facial Expressions - The Rest
- Take care of voice, tone, and facial expressions next. Then, the rest, such as scent, style, etc. I spent a lot.. a lottt of time on facial expressions before I got my vibe down. It can be pretty exhausting. In the end, it doesn't matter too much in comparison to a slow, controlled and sexy vibe, as the facial expressions seem to come pretty naturally after that.