Put down a drop cloth to protect your flooring, and tape off the ceiling and door trims.
Apply a base coat of suede paint around the perimeter of the room, using a 2- or 3-inch nylon-polyester paintbrush. Use a 4-inch trim roller to blend the brush strokes as you go.
Saturate a 9-inch 3/8-inch-nap roller --- or the roller recommended by your paint manufacturer --- with suede paint and begin to fill in the interior of the wall. Work in small 3-foot by 3-foot sections, rolling in a random fashion. As a general rule, use a generous amount of paint. The first coat will appear uneven --- don't be alarmed, as the second coat will fix any imperfections.
Allow the first coat of paint to dry for at least four hours.
Use a 3-inch brush to apply a second coat of paint. Brush the paint on in a pattern of overlapping "X"s, applied in a random fashion. Make each "X" approximately 6 inches long, but work in free form. Each "X" does not need to be uniform --- just make sure they overlap enough so that no one "X" is discernible.
Remove the painter's tape gently according to the recommendation of the paint manufacturer. This could be after it is partially or fully dried.