by changing the inflection of the voice
A speaker is the person (or animal or object, in some cases) who is telling the story. A speaker is essentially the same as a narrator because the speaker narrates the story.
Yes, you will need a screwdriver though, and a smart idea is to put the srews on the back magnet of the speaker
Speakers' Corner.
He chairs major debates in the House of Commons, and decides questions of procedure. bye... dicki 98... aged 11