Freshmen: Are never in bed past noon.
Seniors: Are never out of bed before noon.
Freshmen: Read the syllabus to find out what classes they can cut.
Seniors: Read the syllabus to find out what classes they need to attend.
Freshmen: Brings a can of soda into lecture hall.
Seniors: Brings a jumbo of hoagie and six-pack of Mountain Dew into a recitation class.
Freshmen: Calls the professor “Professor.”
Seniors: Calls the professor “Bob.”