Mask off all ceiling, window trim and floorboard areas with painter’s tape. Cover floors with drop cloths.
Paint walls with flat latex paint in a color that compliments your over-all damask pattern and interior design theme.
Place the stencil at ceiling height at one end of the wall with spray adhesive or low-tack masking tape. Use a bubble level to make sure the stencil is level on the wall.
Pour a few tablespoons of the paint you've chosen for the damask stencil on a Styrofoam plate. Roll paint roller into the paint and blot excess. Roll over the stencil with the paint roller—but not too hard, or it will force the paint under your stencil and cause “fuzzy” edges. If you accidentally roll past the stencil and on to the wall, remove it with a damp cloth immediately.
Lining up the resignation marks on the next stencil below your finished work, tape or adhesive spray in place, double-checking that it is level with the bubble level, and repeat the process until the walls are complete.