Freshman: Is never in bed past noon. 
Senior: Is never out of bed before noon. 

Freshman: Reads the syllabus to find out what classes he can cut. 
Senior: Reads the syllabus to find out what classes he needs to attend. 

Freshman: Brings a can of soda into a lecture hall. 
Senior: Brings a jumbo hoagie and six-pack of Mountain Dew into a recitation class. 

Freshman: Calls the professor "Teacher." 
Senior: Calls the professor "Bob." 

Freshman: Would walk ten miles to get to class. 
Senior: Drives to class if it's more than three blocks away. 

Freshman: Memorizes the course material to get a good grade. 
Senior: Memorizes the professor's habits to get a good grade. 

Freshman: Knows a book-full of useless trivia about the university. 
Senior: Knows where the next class is. Usually. 

Freshman: Shows up at a morning exam clean, perky, and fed. 
Senior: Shows up at a morning exam in sweats with a cap on and a box of pop tarts in hand. 

Freshman: Has to ask where the computer labs are. 
Senior: Has own personal workstation. 

Freshman: Lines up for an hour to buy his textbooks in the first week. 
Senior: Starts to think about buying textbooks in October... maybe. 

Freshman: Looks forward to first classes of the year. 
Senior: Looks forward to first beer garden of the year. 

Freshman: Is proud of his A+ on Calculus I midterm. 
Senior: Is proud of not quite failing his Complex Analysis midterm. 

Freshman: Calls his girlfriend back home every other night. 
Senior: Calls Domino's every other night. 

Freshman: Is appalled at the class size and callousness of professors. 
Senior: Is appalled that the campus 'Subway' burned down over the summer. 

Freshman: Conscientiously completes all homework, including optional questions. 
Senior: Homework? I knew I forgot to do something last night. 

Freshman: Goes on grocery-shopping trip with Mom before moving onto campus. 
Senior: Has a beer with Mom before moving into group house. 

Freshman: Is excited about the world of possibilities that awaits him, the unlimited vista of educational opportunities, the chance to expand one's horizons and really make a contribution to society. 
Senior: Is excited about new dryers in laundry room. 

Freshman: Takes meticulous four-color notes in class. 
Senior: Occasionally stays awake for all of class.