Difference between Public Speaking & Acting
In practically all the aspects of public speaking you deliver your own thoughts in your own words. In dramatic presentation you deliver the words already written by some one else; and in addition, while you are delivering these remarks you speak as though you were no longer yourself, but a totally different person.
This is the chief distinction between speaking in public and acting. While you must memorize the lines you deliver when you try to act like a character other than yourself, speeches in dramatic production are not like usual memorized selections. Usually a memorized selection does not express the feelings or opinions of a certain character, but is likely to be descriptive or narrative. Both prose and verse passages contain more than the uttered words of a single person.
As preparation for exercise in dramatics, whether simple or elaborate, training in memorizing and practice in speaking are extremely valuable. Memorizing may make the material grow so familiar that it loses its interest for the speaker. Pupils frequently recite committed material so listlessly that they merely bore hearers. Such a disposition to monotony should be neutralized by the ability to speak well in public.