"That's enough."
After putting a little more strength into pushing Hua Mei Meow away, Shanks, who had remained in place all along, took two steps back himself and stopped observing her.
Of course, he had not stopped because of his crewmates' heckling, but because he had basically understood her grasp of Conqueror's Haki.
"Let's start with Observation Haki Killer. Overall, there's nothing wrong with your execution. You just need to adjust a few details..."
Once the actual lesson began, Shanks became unusually serious, and the Red Hair Pirates heckling on the sidelines quieted down as well.
Observation Haki Killer was not actually a particularly complicated technique. After Xie Wen learned its core principle through his knowledge of the source material, the version Hua Mei Meow worked out was not much different from the original. Shanks merely added a few tricks for using Conqueror's Haki to interfere with Observation Haki, along with some practical experience.
Even without his teaching, Hua Mei Meow could have gradually figured those things out after using Observation Haki Killer a few more times. Shanks's guidance simply saved her a few detours.
Since Observation Haki Killer worked on fundamentally different principles from Empty Soul Possession, what Shanks said was not particularly helpful to Xie Wen and the others, though Shalmeow's "Moonless Thundercloud" could borrow a thing or two from it.
As an aside, under her guidance, Klee Meow and Meowrah had also developed similar moves, naming them "Moonless Flame Cloud" and "Moonless Snow Cloud" in the same tradition.
The subsequent instruction on Divine Departure, however, was very helpful to Xie Wen and the other fighters. Besides techniques involving Conqueror's Coating, Divine Departure also incorporated some techniques for using Armament Haki, as well as a technique for an instantaneous burst of speed, which could further enhance the effects