If "Twiszip" is a character from a story or a specific step in a complex model (like a 3D puzzle), please share a few more details so I can give you the exact steps!
Continue "zipping" the units together until you have a 3D cube. Each corner should have three units meeting, forming a stable "twist." Part 3- Twiszip
: Flip the piece over and fold the two pointed ends inward to form a perfect square with two flaps on the back. Repeat : Do this for all 6 pieces of paper. Assembling the Cube ("Part 3"): Take one unit and hold it so the "pockets" are facing you. If "Twiszip" is a character from a story