How would you prepare yourself before and during your presentation?

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"The human brain starts working the moment you are born and never stops until you stand up to speak in public." —George Jessel

You have to give a big, important presentation in just 15 minutes. Your heart is racing, your palms are damp — you're starting to panic.

It's completely normal. In fact, most speakers, beginners and veterans alike, readily admit to feeling nervous in the moments leading up to a big speech or presentation.

Darlene Price, president, of Well Said, Inc. and author of "Well Said! Presentations and Conversations That Get Results," tells Business Insider that instead of trying to lose the butterflies, you should aim to leverage them. "The adrenaline surge can fuel your body with the energy and enthusiasm necessary for a great performance," she explains.

Whether you're stepping to the front of the room to speak to just a few people, or making a grand entrance in a ballroom to address thousands, here are 15 ways to effectively use the 15 minutes before you go up to prepare your body and mind for peak performance:

1. Talk positively to yourself

Claim your success before you begin, Price says.

"Let's learn from the experts in sports psychology. They've proven that an athlete's positive self-talk prior to and during a performance consistently creates a higher win rate," she explains.

In the minutes leading up to your presentation, say over and over within yourself, "I am a dynamic speaker!" "I am enthusiastic and engaging!" "I am prepared and confident!"

"Write your own set of self-affirmations and confidently declare them," she advises. "Your words will create a self-fulling prophecy."

2. Use the restroom

"First thing's first," Price says. "Needing the toilet when you wouldn't normally 'have to go' is a common reaction to anxiety and pre-speech jitters. Why take chances? Plan ahead and use the restroom in the moments prior to going on stage."

3. Check yourself out in the mirror

There's nothing worse than wondering, "Do I have something in my teeth?" as you take the stage.

To ease any potential concerns about your physical appearance you might have as you begin your presentation, you should take a quick look in the mirror before you start. This way, you'll have one less thing to worry about (and be distracted by!). 

4. Meet and greet the audience before you speak

Shake hands and talk with as many people as possible ahead of time. "This shows the audience you're approachable and personable," Price explains.

"You may even learn a few names, issues, and stories to weave into your presentation. Plus, having conversations with your listeners ahead of time transforms scary 'public' speaking into natural, relaxed 'personal' speaking."

5. Check out the meeting room and audiovisual set-up

As the speaker, be sure you know the environment, including the seating arrangement, presentation electronics, microphone, and lighting.

Get to the room early and ensure you're comfortable with the set-up. "This step shows the audience you're prepared and helps ensure your presentation runs smoothly," she says. 

6. Take several deep belly breaths

Since anxiety tightens the muscles in the chest and throat, it's important to diminish that restricting effect with deep inhalations, Price explains.

Don't underestimate the power of a long, slow, deep breath. "It maximizes the amount of oxygen that flows to the lungs and brain; interrupts the adrenalin-pumping 'fight or flight' response; and triggers the body's normal relaxation response," she says. In the moments leading up to your presentation, breathe deeply and deliberately.

7. Practice the first minute in your mind

Whatever you're planning to say as the captivating opener — a witty quotation, personal story, or startling statistic — rehearse the first few sentences several times, Price suggests. Knowing exactly how you're going to start gives you confidence, enables you to look directly into the eyes of audience members as you begin (not at notes or a slide), and creates a powerful first impression.

8. Focus on positive thoughts and images

"Harnessing the power of the mind-body connection means that you can learn to use your thoughts to positively influence your body's physical responses," Price says.

As a result, you can decrease stress and increase a sense of well being and control, just by holding positive thoughts and images in your mind.

For example, replace the thought, "I'm so nervous and unprepared I'm going to bomb," with a positive statement such as, "I'm an expert on my topic," "I'm enthusiastic and engaging," or, "I'm credible and confident."

9. Sip water that is either warm or room temperature, with lemon if possible

"This helps with dry-mouth, cuts through mucus buildup in the mouth, and clears the throat," Price says. Avoid cold food and drinks, dairy products, and carbonated beverages — and ensure a glass or bottle of water is within arm's reach during your speech.

10. Acknowledge the three audience truths

Prior to speaking, tell yourself:

"This audience believes I am the expert."  The audience perceives you as a recognized authority simply because you're the one speaking, she explains. "Plus, you know more than they do about the topic."

"They want me to succeed." Audiences are rooting for you. They want and expect you to add value; to be interesting, engaging, and informative otherwise the presentation is a waste of their time, says Price.

"They don't know what I'm going to say." If you make an error, don't announce it or apologize, just keep going. "The audience will never know."

11. Exercise lightly

In a private setting beforehand, do some light stretching, a few knee-bends, or take a brisk walk down the hall and back. "This rids the body of excess energy and sends oxygen to the brain," she says.

12. Assume a standing position in the five minutes prior to speaking

If you're the host or only speaker, you'll be standing anyway. However, if you're one of several speakers on the agenda, and your turn is coming up in five minutes, simply step to the back of the room and stand, or stand up if you're backstage.

"The sitting position is motionless, passive, and inactive. By standing, you summon energy ahead of time, give your body a chance to warm up, and place yourself in a posture ready for action."

While you're at it, strike a "power pose."

Harvard psychologist Amy Cuddy describes power poses as expansive and open stances where you take up a lot of space and hold your arms and legs away from your body, reports Business Insider's Rachel Gillett. 

When you expand your body, Cuddy tells Business Insider, "your mind starts to feel more confident and powerful — it starts to see those challenging situations not as threats but as opportunities."

13. Avoid your phone

Don't scroll through social media, read the news, or listen to voice messages minutes before your big presentation. It may seem like a good distraction, but if you see, hear, or read something upsetting, for example, it might throw you off. 

14. Focus on giving

Did you get overwhelmingly nervous the last time you gave a birthday gift to a friend? Probably not. You may have felt anticipation, excitement, even joy, but not anxiety, Price says.

"As a speaker, think about your presentation as a gift to the audience; a nicely wrapped package full of valuable information, helpful ideas and meaningful content. The mental attitude of giving empowers you and frees you. It takes your mind off of yourself and puts the focus on helping others."

15. Smile

Maintain a positive, pleasant expression on your face in the moments before you speak.

"Smiling actually relaxes the body. Physiologically, smiling emits endorphins in the brain that calms the nerves, creates a pleasant attitude, and promotes a sense of well being," she says.

Plus, a smile conveys confidence and self-assurance. It shows your audience that you're happy to see them and enthusiastic about your message.

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