Summarize:

Figure out the points on which you both agree. Doing so helps maintain a sense of cooperation on the issue. It also helps you come to some sort of agreement. For example, you might tell your spouse, "We both want to move to an area where the kids can go to great schools. It seems like a low crime rate is most important to you, while diversity is most important to me. How about we look at quality schools in reasonably diverse neighborhoods that have low crime rates?" Close relationships often involve more collaboration than those between relative strangers. If you're trying to reach a compromise with your partner, family member, friend or coworker with whom you're on friendly terms, try the turn-taking approach. For example, if you and your spouse can't agree on which movie to watch, you might take turns and watch them both: one person's preference goes first and the other person's follows. If you and a coworker are trying to decide who'll buy lunch, you might say, "I'll get it this time, but you've got next." If it's equally important (or unimportant) as to who goes first, flip a coin. See the compromise like a gift swap. Basically, this method works with a "You give me this, and I give you that" mentality. Offer something of relatively equal or desirable value to the other person in exchange for what they give you. For instance, if you and your roommate are arguing over who does which chore, you might both decide which is your least favorite chore (e.g., mopping, doing laundry, washing dishes). Then, swap: you do their least favorite chore and they do yours. Remember to be flexible in the exchange. Allow the other person to negotiate. Compromise, after all, often requires both parties to give something up or to consider the other's needs. You might have a suggestion as to how something could be done better, but the other person is resistant to jump on board. If this happens, suggest that they try it your way for a short trial. If they don't like it, you can switch back at the end of the trial. Let's say you read an article that suggests disciplining your children a certain way, but your spouse isn't convinced. You might say, "How about we give it a try for two weeks? If it works, we'll keep doing it. If it doesn't, we'll try your way. Okay?"
Find common ground. Take turns. Offer an exchange. Do a trial period.