Have a relaxed breathing pattern
Breathe from your diaphragm. Feel your ribs as you breathe in and out. Your diaphragm is the key to your confidence. Breathe deeply and be still.
Our breath
Breathe your thoughts. The most relaxing person anywhere, be it a meeting room, is one with relaxed breathing. Breathe deeply and know when to shut your mouth. When you breathe in think about your feelings and when you breathe out, speak about them. You will feel relaxed, know what to speak and in what tone to speak and you will also have the right pauses in your speech.