Prepare walls for painting by removing wall hangings and curtains. Use a screwdriver to remove outlet and switch plate covers. Patch nail holes with a spackling compound and use painter's tape to cover areas you don't want painted, such as the edges of light fixtures and baseboards.
Put on plastic gloves and cover the floors with plastic drop cloths.
Open the can of paint primer and thoroughly mix it with a wooden stir stick. Pour some of the primer into a paint tray and dip the paint roller into the loaded tray. Roll the primer onto the walls. Use a paintbrush for hard-to-reach areas such as edges and corners. Allow the primer to dry.
Open the can of beige paint and thoroughly mix the paint with a wooden stir stick. Pour some of the paint into a paint tray and dip the paint roller into the loaded tray. Roll the paint onto the walls. Use a paintbrush for hard-to-reach areas. Allow the paint to dry.
Use a measuring tape and pencil to mark outlines for faux stones. Start measuring from the top where the ceiling meets the wall. Measure down from the ceiling 8 inches and use a level to mark 8 inches in a horizontal line across the wall. Draw vertical lines 12 inches apart within the 8-inch band to create rectangular faux stones. Stagger the next row of faux stone outlines. Repeat this procedure for the entire wall.
Apply 3/4-inch painter's tape over faux stone outlines on the wall.
Open the can of premixed glaze and pour some of the glaze into a clean paint tray. Dip the sponge into the paint tray. Press the sponge around the edge of each block in a small section of the wall. Work toward the inside of the blocks as the sponge becomes drier, creating depth.
Gently pat the stones with a cheesecloth to create more depth, texture and realism. Repeat the sponging and patting until each section of the wall is complete. Allow the wall to dry.
Remove the painter's tape from the wall to create grout lines.
Thin the glaze by adding a little water. Dip a small artist's brush into the watery glaze and lightly paint over grout lines to give them a more authentic look.