• Study your presentation, rehearse till you are perfect and do it in front of mirror. Memorize the script thoroughly.
• Study the back ground, think of possible questions and prepare to answer them.
• Run a mock session with a friend or colleague. Rehearse the timing and body language.
• Present the presentation with confidence and enthusiasm. Confidence reduces anxiety levels.
• Define your exact goal, your audience level and what they want from your presentation.
• Text in the slides should be error free. Check twice for any errors.
• Dress elegantly with official colors and without unnecessary jewellery.
• Present the subject with calm and effective voice.
• Before you start presentation, watch your audience and smile at them. This will make you at ease and reduce stress levels. Use a friendly greeting.
• Look into each person’s eyes and change the gaze covering all audience.
• Keep a back up of your presentation. It will save you in case of emergency.
• If somebody else is running the slide, both must have rehearsed the timing of changes earlier.
• Do research for extra material on Internet. Add recent content whenever possible.
• Slides should be concise with good colors. Don’t use unnecessary design for official presentation.

Basic rule is, prepare, prepare and prepare.