In one sentence, describe what the following article is about:

Let a little time go by before you apologize. This will allow both of you to cool off some while giving you time to think about how to make the best apology that you can. Try to get a sense of whether the other person is upset still. Although you will probably recognize it when you see it, expressions of anger may involve clenching of the face or fists, yelling, throwing objects, etc. One surefire way to seem insincere is if you do not take the time to apologize face-to-face after your dispute. In addition, much of the information you convey about how you feel is done through your nonverbal communication channels (i.e., through your body). The only time it is acceptable to not apologize in person is if it would be a great inconvenience to either person to have to meet. For example, if who you wish to apologize to lives very far away, it is not practical to meet in person. There's a good chance that after a dispute, you will regret some of the things that you said or did. Be sure to say what each of this is; don't leave anything out. Be sure to include how your actions impacted the person you are apologizing to so this person knows that you know how he felt. If you want to make sure you don't leave anything out, it can be helpful to write down on paper what you regret so that you can study it before you make your apology and/or refer to it in the moment. After a dispute, it is important to state your regrets sincerely. You can express sincerity with your body language. As you state your regrets, make steady eye contact with whomever you were disputing with. In addition, try to maintain a relaxed body posture, while leaning slightly towards this person.  Above all though, make sure your words are sincere. You can do this by only saying what you mean.

Summary:
Wait for the dispute to die down. Apologize in person. Say what you regret. Be sincere.