Last night on Conan, Jon Hamm broke down the facial expressions obsessively captured on this Tumblr — “That’s unfettered arousal … That’s post-climax … I think that’s, I think I just farted.†Regardless of his gassy look, Hamm must have passed the personality test because girlfriend and Friends With Kids writer-producer-co-star Jennifer Westfeldt judges people by their pets; and Stephen Colbert sang … again! Watch our compilation to see what you missed.