Say, you’re diametrically opposed to someone in a conflict. Then you will only aggravate the tension if you, literally, sit diametrically opposite each other at the negotiating table. That’s why mediators prefer round tables. If you want to reach an agreement, it helps to change your physical position with regard to your opponent. For change, try sitting next to him. It also helps to be on the same side more abstractly: focus on a common goal together—or talk about a common enemy. Make sure you’re both facing the same direction, shoulder to shoulder. Accentuate what you have in common, not what divides you.