The prayer is simple, "Lord Jesus Christ, Son of God, have mercy on me a sinner." You simply repeat it over and over. You begin your prayer time in a special quiet place where you have your icons and a candle which you can light before you begin. Take a few moments to quite your body and repeat the Trisagion prayer, then begin the repetition of the Jesus Prayer. Focus on the words. Say it aloud in the beginning. Don't try and rush. You have committed the time (You can set a timer so you know when the time is up) so there is no time pressure. Elder Thaddeus of Vitovnica tells us, "We should say the words of the prayer knowing that the Lord sees us and He is listening to us."