Perspective taking is defined as the process in which a person has ability to think apart from their point of view in particular situation.They tend to consider others view and thinking about that situation.This process is based on understanding feeling, emotion and mind of other people.
According to the question,Elaine is missing the characteristic of perspective taking s she is not understanding and considering point of view of other friends while talking about third grade's first day. She is showing the feature of typical adolescent who is interested in her talk and experience majorly.