Step 1 Take your piece of paper
Step 2 Fold your piece of paper in half like it has been done on the picture
Fold in both corners on the folded side (make sure it's not the open side!)
Fold up one side of the paper over the corners like has been done on the picture
This is what it should look like on the other side
Now repeat action on the other side of the page, you should end up with a paper cone shape A.k.a a paper hat!
This bit is hard to explain so I added a video to help,basically you fold it over in the middle like in the video
This bit is difficult to do I added a video again. It's important you do this correctly or it won't work.