Move furniture to the center of the room. Put plastic sheeting on the floor.
Place a new paint roller cover on the paint roller. Roll it on a strip of masking tape to remove any lint.
Stir the glazing medium. Pour enough glaze into the paint pan to fill the well.
Apply the glaze to the top corner of a wall with a paintbrush. Paint along the corners and the edge of the ceiling, where a roller can't fit. Be careful not to get glaze on the ceiling.
Apply the glaze in sections of approximately 3 feet by 3 feet. Use the brush for the edges and the paint roller for the rest.
Scrunch up and smooth out the tissue paper for a more textured effect. Use flat sheets of tissue paper for a less exaggerated surface. Begin in one corner and carefully apply a sheet of tissue paper to the wet glaze. Arrange subsequent sheets to overlap slightly on the edges.
Apply glaze to the next section. Place tissue paper on the wet glaze. Continue until each wall is finished. Allow the walls to dry.
Brush on a topcoat of clear or tinted glaze to protect the walls and provide additional color. Make tinted glaze by squeezing tints into a clear glaze. Stir thoroughly. Apply the glaze by brushing out in all directions. Blot the walls with a bunched-up handful of cheesecloth if you want to soften your brushstrokes.
Wash the brush with soap and water. Soak the cheesecloth in clean water if you want to save it for future use. Rinse it out and hang it up to dry.