what is Herbert's overall attitude about the ''monkey's paw?'' How do you know this?

Herbert is skeptical about the paw. He is sarcastic and mocks the idea that the paw could hold special powers,

'You’ll probably find the money in a big bag in the middle of your bed,’ Herbert joked as he said goodnight to them....Don’t spend any of the money before I come back,’ Herbert said, going to the door.