We want to get it over with. Whoever is more flexible about time has the advantage. Your patience can be devastating to the other negotiator if they are in a hurry. Focus on satisfaction. Help the other negotiator feel satisfied.
Satisfaction means that their basic interests have been fulfilled.
Don't make the first move. The best way to find out if the other negotiator's aspirations are low is to induce them to open first. They may ask for less than you think. If you open first, you may give away more than is necessary. Don't accept the first offer.