At first you need to fold the paper (at least 5x5 inches in size) in a half diagonally way.
Now lay this folded paper in a triangular shape on a flat or balanced sheet or surface. Make sure that the folded edges are towards you.
The top of the triangle should not be pointing towards you. It should be on the opposite direction.
Now you need to fold the left corner of the triangle towards the middle and then do the same with the right corner.
Make sure the top corner of the triangle has two layers of paper.
Then you need to pull these two layers slightly apart and fold it down on opposite directions.
Now you will see that it takes the shape of an open envelop.
After that, slide your hand in this envelop that you have already created.
Then spread the sides of this envelop apart from each other and it will become a cup having three dimensions.
The drinking paper cup is complete now. Add your favourite beverage and enjoy the drink.