The next day, Lily unexpectedly shows up at Marshall's workplace, and finds out that Jenkins is a woman.
Ted and Robin theorize that in every relationship, one person is a "reacher", and one is a "settler", who settles for the less attractive partner.
Marshall at first is offended and says that he did not "settle for Lily", but is upset when he realizes that Ted and Robin define him as a reacher.
To prove that he can date more attractive women, Marshall plans to show Lily how Jenkins flirts with him.
The class explains to Ted that Robin is so hesitant when she does interviews that her constant interjections of "but um" are the basis for a drinking game, one that Jenkins had been playing when she drunkenly kissed Marshall.
Annoyed by the truth, Robin decides to repeat the phrase "but um" excessively, making those playing the game drink much more than usual.
During the next day's class, Robin interrupts again, startling the hungover Ted and his students by shouting into a megaphone.
Harris summarized the experience describing it as [sic] "Equal parts overwhelm, education, and exhilaration.