Take the sheet and fold one corner into the other corner.
Now spread the sheet flatly on the floor with its corner in the other corner. Take one side and put it inside the other side.
It should give the direction like a square.
Then fold it in to two and then into two again.
There you go you have folded a sheet into a beautiful position like a pro.
I must say the video was of great educational benefits as it helps to teach us the right way to fold a sheet. Good job yet the video could have been a little clearer.