Select the topic. Think about the message you want to deliver. Consider its aim, the title, your audience, the main points you want to make and if there is something you want your audience to do after listening.
Write a brief yet engaging first sentence or first liner. Practice your script before delivering it. For example, you can perform the introduction segment in front of a mirror.
Decide on the position you will take when making your introduction. The golden rule is always be natural. Maintain good body language. Your eye contact should keep the TV viewers’ attention; your facial expression should be friendly — raise your eyebrows, smile, open your eyes wide or squint. If sitting, lean forward slightly; if standing, maintain a straight but relaxed posture. If walking, always take two steps before you speak.
Look directly at the camera and signal the beginning. Introduce yourself in a relaxed manner. This gives important information so TV viewers can identify you. In addition, it prepares them to identify your points.
Deliver your two to three key points in an interesting way. Think of one-liner that will be memorable to the TV viewers. Be brief and clear in giving the subject and purpose. Be lively and enthusiastic.
Show how your subject or what you are going to say affects or may affect their lives. In other words, make it personal. For example, give a fact or statistic. Do not assume viewers will be interested in what you have to say, since their minds may wander or they may get distracted. Arouse their interest right from your intro, so they can stay tuned for the rest of the TV show or news report.
Pronounce the words in a proper manner to be understood correctly. Make sure you know how to pronounce the key technical words that you may have to repeat after the intro.
Speak loudly enough to be understood, clearly and slowly. Vary your pitch to engage your viewers. Incorporate silent moments or pauses when speaking to indicate importance or meaning to what you are talking about. It will also help you to avoid sounding monotonous and boring to the viewers.
Look directly into the camera unceasingly. Use facial expressions and apply hand gestures where necessary. Deliver the rest of the story.