1. Sing using your lips, tip of your tongue, and your teeth so as create words that will really help you sing better and easier. Most commonly, people swallow words and it became a habit that gets in the way of resonance, our tone placement and more important, our singing mechanics. To help you improve this skill, always practice a certain tongue twister four times or more.
Don not forget that it is important to concentrate on not to exaggerate your movements of the articulators. Did you notice something? That's where it is that you've felt when you sing. Always remember, there are times when you will feel like you are moving them in a funny way if you are not yet get used to using them regularly. Check yourself in a mirror, and you will be surprised.
2. Establish yourself to build your singing performance. Just like a roller coaster, there is an intensity building and suspense that you felt when you ride one, so is to your song and singing. It should have its own ups and downs. Make sure to look forward for the proper preparation to have best results. Prepare for the way you will sing like the dynamics of your volume and the intensity. Put in mind how emotional you can be when singing and sing accordingly. Never forget that singing is more of an art than a skill.
3. Be ready with unexpected things to happen before the event. Check and double check your vocal instruments and adjust accordingly
4. Don't be afraid to experiment, try something new and different way of practicing. Try and look for an easier measure to get your best vocals. For instance, increase/decrease the way you pronounce words, increase or decrease airflow volume, support of diaphragm, change tone placement, change resonance.