 Leigh 's character has been called " reliable , trustworthy , timid , and apprehensive " by Grey 's Anatomy executives . In her early appearances , it was learned that Lexie has a photographic memory , which she applied to her surgical career . This led her to being nicknamed " Lexipedia " by Alex Karev . The character has also been described as an " innocent young intern " by Alex Keen of The Trades . 
