Final answer:
After finishing a meal, place your napkin on the table to the left of your plate, which is proper etiquette for signaling that you are done. It is not appropriate to place it in other locations like your pocket, under the plate, or in the trash.
Step-by-step explanation:
When you are finished with your meal, the proper etiquette is to place your napkin on the table to the left of your plate. This is a signal to the server that you are done with your meal. It's not appropriate to put the napkin in your pocket, under the plate, or in the trash. At the start of the dining experience, you should place the napkin on your lap, and it should remain there until you are finished eating. When it comes to telephone etiquette, such as how long to wait on hold, it may vary, but generally speaking, if you are on hold for an extended period, you may consider hanging up and trying the call again later.