Leave the house when it's being shown and take the dog and children with you. If you must be home don't chat with buyers, just disappear. Tune the FM radio to quiet, soothing music. Be careful of cooking odors. Turn on all the lights.
Fresh flowers are always a plus.
Keep the temperature at a comfortable level, open windows and doors if weather and security permit. Pick up the kid's toys. Help your real estate professional by creating a warm, pleasant, private sales environment. Today's buyers are tough but every market offers opportunity. Seek your real estate professional's advice.