Did you know when dining, you may send the wait staff silent signals regarding the progress of your meal.
Silent signals include placing your silverware in the "I am resting" and "I am finished" positions.
When dining Continental style, and resting, place your silverware in an upside down "V" position with the tips of your knife and fork in the center of the plate and the handles in the 40/20 position, (like a clock). When dining American Style and resting, place your knife on the right top edge of your plate and the fork in the center of your plate in the 10/20 position, (like a clock). When dining Asian Style, place your chopsticks on the chopstick rest.
When finished with the meal and dining Continental Style, or American Style, place your knife above your fork, blade always toward you, in the center of the plate in the 10/20 position, (like a clock). Dining in the Continental Style, your fork tines will be facing down toward the plate. Dining in the American Style, your tines will be facing up. When dining in Asian style and finished, place your chopsticks also in the center of your plate in the 10/20 position.
Be sure to always have the blade of the knife facing you. Never have the blade of the knife facing anyone else and never point your chopsticks at anyone. Dangerous and considered in the Asian culture to be bad luck.
When leaving the table briefly, a silent signal may also be sent to the wait staff with your napkin by placing your napkin on your chair signaling to the waiter "I will return, do not remove my plate."
Now, all you may have to worry about is the wait staff knowing the correct silent signals!