Communication observations

I want to observe five different speakers from five different situations the observations have to be about positive and negative aspects of the speaker
The observations should includes below points
Delivery skills,
Content (structure of the content, supporting facts, order of the content)
How to make the listener to pay attention,

I want to observe five different speakers from five different situations the observations have to be about positive and negative aspects of the speaker
The observations should includes below points
Delivery skills,
Content (structure of the content, supporting facts, order of the content)
How to make the listener to pay attention,