Avoid having too many people present. Potential buyers may feel like intruders and hurry through. Unless pets are quiet, peaceful and well-behaved, get them out of the way. Soft background music may be acceptable, but turn off blaring stereos, radios and televisions. They can only impede discussions.
Silence is golden.
Too much talking on your part can only distract from the buyer's inspection of your home. Never apologize for the appearance of your home. After all, it's been lived in.