How might you use your body language and vocal tone to convey anger?

When conveying anger, I would tense my body, clenching my my fists with my back straight and rigid, so that the physical tension reflects the emotional tension in this moment. When moving my arms about, I would move them at speed and in short, swift movements, surreptitiously widening my eyes and following other characters on stage with rapid quick movements of my head, which combined would further convey my current volatile state. I would speak at a louder volume, and spit out the consonants in my lines, particularly plosive letters.