Definition of "please"
please1
verb
third-person singular simple present pleases, present participle pleasing, simple past and past participle pleased
(transitive, intransitive) To make happy or satisfy; to give pleasure to.
Quotations
And so it had always pleased M. Stutz to expect great things from the dark young man whom he had first seen in his early twenties ; and his expectations had waxed rather than waned on hearing the faint bruit of the love of Ivor and Virginia—for Virginia, M. Stutz thought, would bring fineness to a point in a man like Ivor Marlay, […].
1922, Michael Arlen, “Ep./1/1”, in “Piracy”: A Romantic Chronicle of These Days
please2
adverb
not comparable
Used to make a polite request.
Quotations
(Michael): Yuri Andropov! What are you doing in my closet of anxieties again?(Yuri): Uh, oh. This is not 1600 Pennsylvania Ave., Washington, D.C.?(Michael): Does it look like it? You're in the wrong nightmare again!!(Yuri): ★@#*!?! Soviet maps ... worth nothing! Give, please, directions to White House.Using the word in this position is often, but not always, the trait of a non-native speaker.
1983 July 10, Berkeley Breathed, Bloom County, spoken by Yuri Andropov
please3
interjection
(Cincinnati) Said as a request to repeat information.
Quotations
[…] He explained in broken English that one of his daughters was ill and he probably could not be there. I did not understand all that he said, so asked, ‘Please?’ per Cincinnati custom. ‘There is no need to plead. I will be there if she is feeling better,’ he replied.
September 1979, “Winners: Contest No. 13—The Laugh’s On Us”, in Cincinnati, volume 12, number 12, page 15
In Maine, where as much as a quarter of the population has French ancestry, you may hear a stray hair called a couette, and in parts of Ohio please is used in the same way as the German bitte, to invite a person to repeat something just said — apparently a remnant of the bilingual schooling once available in Cincinnati.
2008, Henry Hitchings, The Secret Life of Words: How English Became English, page 255
Ellen grew up outside of Cincinnati and believed her own talk was the “norm,” while others were speakers of dialects. She was in graduate school before she learned that not all people say, Please? to mean Can you repeat that?
2011, Ellen McIntyre, Nancy Hulan, Vicky Layne, Reading Instruction for Diverse Classrooms: Research-Based, Culturally Responsive Practice, Guilford Press, page 72