Personality is a very interesting topic; it's nice to see how different we are from each other and what makes us unique. But I always wondered how you would find out someone's personality when there are a plentiful amount of traits. This topic in class simplified basic personality traits for each individual.
I have always liked categorizing and comparing people's interests and mine. It's cool to see how different or similar I am to others. The self-assessment test we took during this topic very much showed my personality in depth. It was also very strange how accurate it was. I would think to myself of how I gained a certain score on one of the big five; the longer I thought about it, the more it would make sense to me.
O.C.E.A.N. has changed my way of thinking about personality; I now use the big five whenever trying to categorize someone's personality. Occasionally, I think about how much extroversion or agreeableness my friends and families have. I also do it to fictional characters for fun.
Now, instead of saying a person is outgoing, I'll say oh he's extroverted.