lupine cotillion  Ha!
Well--though less accurate than tsuwm's find, I offer 
recognition as a key. Not always recognition of the name itself; often we go by context.  (And sometimes we literally have no clue.)
I decided to try looking up definitions, and this one seems to offer a hint: 
Dictionary.com Unabridged (v 1.1)  
proper noun 
–noun Grammar. a noun that is not normally preceded by an article or other limiting modifier, as any or some, and that is arbitrarily used to denote a particular person, place, or thing without regard to any descriptive meaning the word or phrase may have, as Lincoln, Beth, Pittsburgh.  
Also called proper name.   link