Instructions for one or more people
Pour water into a glass.
Fill the glass to the brim.
Keep pouring water into the glass until the surface of the water forms a lense that exceeds the edge of the glass.
Be careful not to spill the water.
Pour water into a glass.
Fill the glass to the brim.
Keep pouring water into the glass until the surface of the water forms a lense that exceeds the edge of the glass.
Be careful not to spill the water.