Inhale for a count of four. Take a full and deep breath. Breathe in through your nose and fill your belly with air. Exhale for four counts. Breathe out evenly and forcefully. Repeat this step at least five times before you begin speaking out loud. Breathing deeply and effectively helps to naturally increase your volume and vocal projection.
Place yourself in a quiet room. Speak out loud in a natural voice while focusing on your breathing and volume. Practice your articulation. Try various tongue twisters. Say "Peter picked a peck of pickled peppers" several times for example. Concentrate on enunciating every consonant and syllable. Continue with several additional tongue twisters before reading.
Hold a cork upright and open your mouth. Clamp down carefully onto the top and bottom of the cork with your front teeth. Grip the cork tight enough so it will not fall out -- but do not bite too hard to hurt your jaw. Begin speaking with the cork in your mouth. Use lots of words beginning with "w" or "p" to stretch the jaw muscles as you speak. Continue this activity for five minutes. Working with a cork helps to release tension in the jaw muscles and relaxes your mouth and throat to help you project a smooth and articulate voice.