In Treasure Island, what is Pew's most noticeable feature?

Pew's most noticeable feature is his blindness: he lost his eyes in same attack in which Long John Silver lost his leg.
Pew does not have a major role in the novel. After Jim Hawkins and his mother find the dead Bill Bone's sea chest at their inn containing the coins and the treasure map, they hear Pew and his men arrive. In great fear, Jim and his mother flee with the money and the oilskin packet containing the map. However, Jim's mother faints. He leaves her on the river bank to recover while he creeps back toward the inn. There, he witnesses Pew and his men cursing and searching for the treasure. Pew tries to rally the men to chase down whoever took the contents of the chest. He says:

"You have your hands on thousands, you fools, and you hang a leg! You'd be as rich as kings if you could find it, and you know it's here, and you stand there skulking. There wasn't one of you dared face Bill, and I did it—a blind man!"

We can see from this that Pew is daring and unafraid. He also wants money. He flails blindly at his men with his stick before being accidentally trampled to death by revenue officers.