Let’s see what a Psychology and Brain Scientist, Susan Weinschenk, (Ph.D. in Psychology and Brain science)”The Brain Lady” says about the matter:
• Part of the brain called The Fusiform Facial area makes us pay attention to faces.
That part is sensitive to faces. It is programmed to remember and recognise faces. That’s capture your attention for longer period. Furthermore that part of the brain is connection with some emotional areas of the brain, so everyone who is watching perceive the information in one more level of perception.

• Voice conveys rich information – the human voice has an amazing result on us just by it’s own.
The tone of voice will contribute to the emotions, which you would like to pass to your members.

• Part of the brain called The Fusiform Facial area makes us pay attention to faces.
That part is sensitive to faces. It is programmed to remember and recognise faces. That’s capture your attention for longer period. Furthermore that part of the brain is connection with some emotional areas of the brain, so everyone who is watching perceive the information in one more level of perception.

• Voice conveys rich information – the human voice has an amazing result on us just by it’s own.
The tone of voice will contribute to the emotions, which you would like to pass to your members.