Gather the acrylic latex paint, a measuring cup and a stirring stick.
Remove the lid from the paint. Measure one-half cup of water. Pour the water directly into the paint can.
Using a stirring stick, stir the paint in a circular motion while moving the stick up and down.
Check the consistency of the paint. If it is not as thin as you would like, stir in an additional one-eighth cup of water. Continue adding small amounts of water until the paint is the consistency you desire.