1. Be Impeccable with your Word: Speak with integrity. Say only what you mean. Avoid using the Word to speak against yourself or to gossip about others. Use the power of your Word in the direction of truth and love.
2. Don’t Take Anything Personally Nothing others do is because of you. What others say and do is a projection of their own reality, their own dream. When you are immune to the opinions and actions of others, you won’t be the victim of needless suffering.
3. Don’t Make Assumptions Find the courage to ask questions and to express what you really want. Communicate with others as clearly as you can to avoid misunderstandings, sadness and drama. With just this one agreement, you can completely transform your life.
4. Always Do Your Best Your best is going to change from moment to moment; it will be different when you are healthy as opposed to sick. Under any circumstance, simply do your best, and you will avoid self-judgment, self-abuse, and regret.
Below is taken from: http://www.toltecspirit.com/ (which explains how to utilize these in depth)
“During our early life we began making agreements. Our parents rewarded us when we did what they wanted and they punished us when we didn’t. We also learned behaviors and habits in school, church, and from other adults and children on the playground. The tools of reward and punishment were often emotional and sometimes physical. The impact of other people’s opinions and reactions to us became a very strong force in the habits we created. In this process we created agreements in our mind of who we should be, what we shouldn’t be, who we were, and who we were not. Over time we learned to live our life based on the agreements in our own mind. We learned to live according to the agreements that came from the opinion of others. In this process of domestication it turns out that the choices we make and the life we live is more driven by the opinions we learned from others than one we would choose on our own.”