He had several things going for him. For instance, he was their blood. Based on everything he heard, he could be certain that the Silas Clan had extremely strong familial bonds and placed a lot of importance on family.
In other words, appealing to this was his greatest out to victory.
However, he could not be obvious with it. The moment they realized he was trying to manipulate them, they would most likely become extremely hostile. He simply needed to act and talk in a manner that evoked a sense of familial kinship naturally and organically within them.
The fact that he was a descendant of Matriarch Nephi was also a great boon in that regard
While relying on familial kinship was undoubtedly an effective strategy, it wasn't the only approach he had at his disposal. He could incentivize them with beneficial offers of great value to them.
