Stray pet hair on furniture, especially on upholstery, is a big pet peeve of many pet owners.
There's a commonly used and easy tip to remove pet hair. Purchase a dry sponge at pet-supply store. (They cost under $10.) Using the dry sponge, lightly wipe dog hair in a sweeping motion from upholstery. To protect your upholstery, please make sure the sponge is dry. When you clean the sponge after use, wash with soap and water, and let it dry.
You can also use a damp rag to pick up the hair. Make sure to ring out water from rag before using to prevent the upholstery from getting wet.