Personification is when you give inanimate objects human-like traits. There is only one obvious sign of personification, which is found in the second paragraph, as the narrator describes Miss Emily's decaying house that was "lifting its stubborn and coquettish decay above" the rest of the street. Houses cannot lift; so, that is an example of the figurative language technique of personfication. Throughout the rest of the story there are no more indications of personification, so I hope that is the one that your teacher is referring to. If you meant something else by the question, then submit another query, but be more specific. I hope that helped a little bit!