visual aids
of all the information that enters our brains, the vast majority of it enters through the eyes. 80% of what your audience learn during your presentation is learned visually (what they see) and only 20% is learned aurally (what they hear). the significance of this is obvious:
visual aids are an extremely effective means of communication
non-native english speakers need not worry so much about spoken english - they can rely more heavily on visual aids
it is well worth spending time in the creation of good visual aids. but it is equally important not to overload your audience's brains. keep the information on each visual aid to a minimum - and give your audience time to look at and absorb this information. remember, your audience have never seen these visual aids before. they need time to study and to understand them. without understanding there is no communication.
audience reaction
remain calm and polite if you receive difficult or even hostile questions during your presentation. if you receive particularly awkward questions, you might suggest that the questioners ask their questions after your presentation.
language
say what you are going to say,
simplicity and clarity
if you want your audience to understand your message, your language must be simple and clear.
use short words and short sentences.
do not use jargon, unless you are certain that your audience understands it.
in general, talk about concr