Google released its list of the most searched people of 2013 on Tuesday, and not surprisingly, Miley Cyrus received the coveted No. 1 spot.
If first person is someone telling you his or her story, and second person is you being told how you should do something, then third person is more like a camera recording events. That's not to say it's necessarily an objective point of view. A third person narrator can be highly subjective.
First person, in the context of an utterance, is the speaker. In literature, first-person perspective would mean the main character would be written as I. Visually, in first-person perspective, the view of the camera is precisely the view of the main character.