Do not hold a hunger strike
It is important for you to eat well before the presentation so that your body has enough energy. You should, however, choose only a light meal and eat it about an hour before your speech. Heavy meals or too large portions would put the focus of your body solely on digestion, causing a loss of energy as well as annoying sounds. The same applies in the case of not eating at all.
Bring your own water
When we are speaking, the body loses large amounts of water which should be replenished. You are very likely to feel a dry mouth and throat. Failure to drink at least once per hour may cause headaches, fatigue and impaired concentration. Do not rely on water being provided: rather bring your own bottle of water and find a glass. Before an audience, it is always better to drink from a glass than from a bottle.
Do not drink carbonated beverages
The water you drink before and during your presentation should be non-carbonated. You may not always manage to mask belching by sneezing or holding your breath, especially when using a microphone.
If you have a cold, use antihistamines and tissues
Approximately 45 minutes before the start of your speech, use an antihistamine which does not cause drowsiness. Take a sufficient supply of tissues with you. Your audience should not have to watch you constantly sniffing or wiping your nose on your sleeve. When blowing your nose, be sure to turn away from the microphone. Do not repeat an apology for having a cold: say so just once and then do not return to it.
Do you have any other recommendations? What did you find useful or what backfired on you during physical preparation for a presentation?
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Article source Training Magazine - U.S. professional development magazine