Take a square piece of paper and fold in half.
Open the paper crease from the other side and mark it as previously.
Unlock it you will see the 4 marking of a square while opening it.
Take one corner, wrap it to the center, bend the fold from the center like a rectangle.
From both the sides crease the paper from the center.
Open it and crease from the other side. Unwrap two triangles from the axis of the paper turn it from both sides. Catch the tip by holding the inner slant while holding it push towards the internal side. Repeat the same process from the opposite side, towards the midpoint.
Now your paper box is ready!