It is far more impressive when others discover your good qualities without your help. - Judith Martin

Traditionally, a luncheon is a lunch that takes an eon.

If you put together all the ingredients that naturally attract children - sex, violence, revenge, spectacle and vigorous noise - what you have is grand opera.

The polite thing would be to say to the noisy person, “I beg your pardon, but I can’t hear the music. I wonder if you would mind talking more softly?” By the time you have said all this, a third party will utter a loud shush, thereby accomplishing your purpose without sacrificing your manners.