yes there are. gentlemen should not extend their pinky while holding the mod. while using dripper, the free hand should be holding the liquid bottle by the mid section with free hand. to prevent embarrassing noises such as farting or burfing, one should politely cough while performing bodily function. it's polite to have something to drink on the side so you don't act like a cat spitting out a furball when your throat gets too dry. if possible have hanky or bandanna in one of the pockets. i'm sure there are more, but not being an english, my knowledge of etiquette is limited to how to clean a chicken that came in a plastic bag.