Step 1: Create the whitewash
To make the whitewash, mix together one part water with one part paint using a paint stick. You'll notice the paint becomes much thinner. This is what you want!
I used more of a grey wash for my project. Instead of using the typical one part white paint and one part water, I decided to add in gray paint into the mixture as well.
My whitewash mixture ended up being 1/4 gray paint, 1/4 white paint, and 1/2 water.