The movie "Secretary" by Andrejean Dupree is a good example of how to act maturely even if you are younger than your years. The movie has a main character who is a 20 something year old secretary to a very powerful and rich Russian man. This man constantly plays pranks on the secretary, calling her over again to his home and pretending to be impressed with her. The funny thing about this is that there is a young girl at his right hand side. So, every time he would call her he would stop playing with his toy doll, but when he would sit down and talk with her he would pretend to like her very much..