It is stated before we even meet the characters that Fortunato is a wine connoisseur, and Montresor makes use of that fact to bring about Fortunato's death. He claims to have a pipe (a large barrel) of Amontillado, a very specific type of sherry, which is the first enticement. Then, Montresor says he will ask another man, Luchesi, whether or not it is actually Amontillado and not some random sherry; this serves as the second enticement, taunting Fortunato with the supposed expertise of another man. Fortunato takes the bait, claiming that Luchesi is not good enough to determine whether or not Montresor actually has a cask of Amontillado, so he himself would go and test it. Montresor pretends to decline, saying that Fortunato's health is not good enough to go down into the cellar, and he does that multiple times on their journey, but each time Fortunato states that he is fine and they should keep going. He is clearly very excited about the Amontillado, which means that Montresor made a good decision in using it as the bait. So, in the end, Montresor makes Fortunato think that it was his own idea to go into the vaults to test the cask of Amontillado.