Happy Emoji Cube Dude that SINGS!

[Intermediate] How to fold my newest design!...a smiley face cube dude that sings when you pull its neck (or at least it lip syncs!). This model is from one square of paper, no cutting or taping. I recommend using a 6-inch square of origami paper. The model in the thumbnail is from a 12-inch square of decorative paper I got from a craft store. The domino dudes at the very end of the video are folded from 6-inch squares. The last step of inflating it is probably the most difficult step because the face