STEP 1: Clean the cement floor and apply a degreaser or floor preparation that will make the paint adhere to the cement. There are several products on the market.
(*NOTE* If you have a floor which has paint on it that won't come up, especially if it is oil-based paint the water-based stain or paint will not adhere to it. You may have to use an oil based enamel like Cement Porch enamel paint or by treating the floor with a primer so that regular acrylic paint/stain will adhere to it.)
STEP 2: Select a color of water-based stain and paint the floor with a roller. The color should be lighter than the wood as it will be the highlight of the wood grain.
STEP 4: Mark out guidelines for each plank of faux wood flooring on the floor with a pencil.