When Jessica wakes up in her hotel room, her hair has been noticeably iron-curled at the bottom. When she answers the door to let Hoyt in, her hair is completely straight again.
Lorena tells Eric that she has not seen Bill in over seventy years, to which Eric replies that he has not seen his maker for much longer and then in a Season 3 flashback Eric and Godric are seen hunting werewolves during World War II, therefore seventy years would have been the maximum length of time that Eric and Godric could possibly have been apart. However, it is said later that Eric has had a thousand years to practice deceit. More than likely he was lying to Lorena in order to get her to do what he wanted which would fit in with his character.
Luke mispronounces the phrase "creme de la creme" as "cream de la cream"