I think the correct answer would be energetic. Extraversion is always associated with being happy and energetic when surrounded by people. People who has high score on this are known as the life of the party. They are always full of energy and are happy socializing with people.
Answer: an observer who lacks a specific identity
Explanation: The speaker in "The Lady of Shalott" by Alfred, Lord Tennyson is an observer who lacks a specific identity.
