By repetition, the second “natural law of remembering.” You can memorize an almost endless amount of material if you will repeat it often enough. Go over the knowledge you want to remember. Use it. Apply it. Employ the new word in your conversation. Call the stranger by his name if you want to remember it. Talk over in conversation the points you want to make in your public address. The knowledge that is used tends to stick.
So, how I understand, if you want to be a good speaker and don’t use any notes, you must to prepare harder and repeat your words, then you can get to your goal to be a perfect speaker.
