Soak up liquids with a dry rag or towel.
Remove any cushions, and vacuum the sofa or chair base to remove debris.
Dampen a washcloth, apply a small amount of mild dish detergent to the cloth, and work the soap into a lather. Wring out the cloth thoroughly.
Scrub the stain in circular motions with the soapy washcloth, then dry the fabric with a clean cloth.
Apply a small amount of gentle laundry detergent to a clean cloth, and work it into the fabric, if the stain persists. You may need to repeat the process several times to draw out the stain completely.
Rub the spot with a dry cloth or gently brush it, if the synthetic suede remains stiff after it dries.