Ross faces a dilemma in choosing between Rachel and Julie and makes a list of things he likes and dislikes about each to help understand his feelings. However, research shows introspecting about reasons can change attitudes in misleading ways as people latch onto easy reasons rather than accurate ones. Similarly, people may infer emotions and attitudes from their behavior rather than introspecting accurately. Overall, understanding the self is difficult as people rely less on introspection than assumed and unconscious factors influence feelings and behavior in hidden ways.