Gather a square sheet of paper
Fold the paper in half diagonally to make a triangle
Open the paper and fold it in half diagonally the other way
Open the paper again and fold one corner toward the center
Fold the opposite corner over it to form a cone shape
Tuck the remaining flap around the outside to secure the cup
Press the edges firmly to shape the cup
Adjust the bottom point so the cup can stand upright
Add tape if needed to hold the shape
Use the paper cup carefully for light dry items only