College sweatshirts are 'casual' instead of dress-up. The 4 food groups are no longer beer, pizza, Ramen and cereal. You make thousands of dollars a year - and still can't afford that dream car. You start eyeing the Light Beer section appreciatively. Naps are no longer available between noon and 6 p.m. 10.
Sneakers are now 'weekend shoes'.
Dinner and a movie becomes the whole date, instead of the beginning of one. Jack and Cokes become Dewers on the Rocks. The only drugs you take are Tums and Tylenol. You get your news from sources other than ESPN Sportscenter and MTV News. You empathize with the characters from 'Friends'.