Jim Henson‘s Muppets characters are loved by people of all ages, which is why this new video (via Kottke) from the gang at Sesame Street is a gem. If you’ve ever wondered how the puppeteers behind the series bring the show’s famous characters to life, look no further. We can’t imagine stomping around in Big Bird’s giant feet and having to hold our hand above our head for an hour or more to manipulate his mouth, but puppeteers like Matt Vogel are really damn good at it. Even the subtle movement of a character’s eyes creates such a wonderful way for audiences to connect with each character. Listen to the real-life talents behind Elmo, Mr. Snuffleupagus, and other beloved Muppets characters talk about the mechanisms behind the cast of Sesame Street, below.