Simple changes can improve communication by focusing on words, vocal delivery, and body language. Using the right grammar and vocabulary is key while noting you only need 60% accuracy to be understood. Vocal delivery involves voice strength to be heard, clear pronunciation, adjusting speed for audience size and stressing important parts, and showing feeling. Body language like open posture, eye contact, facial expressions and hand gestures comprise over half of communication as people listen more with their eyes. Regular practice of these techniques can help anyone speak 20% better English.