Wash your walls with a sponge dipped in a mixture of 1 gallon of water with 1/4 cup of trisodium phosphate. Allow the walls to dry.
Tape off the baseboards, moldings and windowsill with painter's tape. Throw down drop cloths on the floor and over furniture.
Combine 1 quart of oil-based paint with 1 gallon of tinted oil-based glaze in a bucket. Replace the lid on the bucket, and shake the contents together well.
Dip a 3-inch nylon brush into the mixture, and test it on an inconspicuous area of wall. Pour the mixed paint and glaze into a paint roller pan.
Dip a textured drywall paint roller into the mixture, and rub it back and forth across the wall in diagonal crisscrossing patterns. This will create an effortless speckled effect. Continue in this manner until you cover the entire wall. Allow it to dry overnight.