Jess mentions that Winston gets really into birds in the future (when talking to Nick about where they see themselves in life). In the next season, Winston starts predominantly wearing bird shirts.
Zooey Deschanel was pregnant in this episode.
The book Cece is reading at the beginning of the episode is called "Eat, Climb, Love".
Bear Hunt: Schmidt says "...and this woman with her brassiere slash teddy".
Although the correct technical term for the rubber stopper that stops the cello from slipping is 'endpin anchor', the commonplace term often used by cellists is 'donut', due to the shape. As a professional cellist talking to non-musicians, May would most likely have used the commonplace term over the technical one.