This video in effective presentations looks at delivery
more specifically, body language and voice
There are five keys to nonverbal communication
and a researcher in the States, Dustin York,
researched these keys
when he looked at and compared reactions to
a good and a poor presenter
in an academic context
and he compared them or he set them up
in five different areas
in one area the good presenter
made eye contact with the audience
the poor presenter didn't
the good presenter used voice fluctuation
voice stress, the poor one didn't,
the good presenter used positioning
where he moved around the class
the poor one didn't
and by the way
if you want to be able to move around an audience
get yourself a a slide advancer, a clicker
it's a really good idea
The good one used facial expressions and hand gestures
the poor one didn't
Now, super importantly
in his post testing of both classes, York found a 30 percent differential
in message retention based on these five factors
that's a huge difference
so a big tip
develop your attentional resources
that means know what you're doing
attention to yourself
and know what the audience is doing,
attention to them
body language, as we've just seen, is key
it's a key emphatic device
for getting message across
it's also a great way of working off nerves
if you're a nervous person
use some of this physical energy
to work off some of the nerves
Now, crucially, if you combine functional language and body language
you get a more accessible message
So, a tip, form practice groups of two to four people
and get someone to video you with a smartphone or a video camera
and watch with the sound off
it's a crucial pointer to your body language
Voice. There are four elements to voice
pronunciation, volume, pace and tone
In terms of tone we're talking about
how your voice rises and falls
A key issue that people have when speaking publicly
is monotone flat voice where the information comes out equally
we don't want that
what we do want is an emphasis on the key point
and coming down
on an idea
key point and coming down
now, in this way of doing things or speaking
the emphasis is not equal
you can hear stress
so the answer is in tonal variation
So, a tip
avoid rote memorising
Information when memorised by rote
tends to become decontextualized
it loses its meaning
In terms of voice pace and pronunciation
a big pace issue is speaking too fast
it's caused by nerves and by having too much content
my tip is always to speak slightly slower
slightly slower is better than too fast
What sort of speed am I talking about?
around a 130 to 150 words a minute is a good speed
it's the speed I'm speaking at right now
if you have too much content
the answer is not to speak faster
it's to take some out, delete some content
pronunciation
keywords must be correct
so go through your talk, identify the key words
they need to be pronounced correctly
I'll talk to you now about thought groups
when we talk we're talking clusters
in phrases in groups of words
we don't say ... individual ... words ... like ... this
we talk like this
'The first thing I want him to investigate
and to measure,
was pre-intervention knowledge.'
I'll say it again
'The first thing I wanted to investigate,
and to measure, was pre-intervention knowledge.'
What's happening here with my voice?
What am I doing?
What do you notice?
Some of the keys then are around the word groups
the stress, micro pauses between phrases,
pacing, tone and body language
let's look at another example
'I next wanted to know,
how this changed
from pre to post intervention.'
I next wanted to know how this had changed
from pre post intervention.'
Again, word groups, stress, micro pausing ...
pacing, tone, body language.
they're the keys
if you want to see this in action
go to the TED Talks website
click on the transcript button
and you can see the thought groups appearing
as the speaker talks
That's the end of this video
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