Sophie actually claps her hands together once, she is so excited to see the snake poke it's head out like a pet.

"Ooh! A Bothrops Jararaca, how exciting! I didn't realize they could be tamed! I'm curious to see how she reacts to being at sea for an extended period of time. Hello Eçaiara, I'm Sophie."

She doesn't seem to notice the fact that she properly introduced herself to the snake, and not the man.

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Sophie misidentified Eçaiara, but I see no reason she would be aware of the species' existence, since it's mostly limited to a not commonly known island.