Taboo: Forbidden Behavior with Chopsticks Are You Aware Of It?
Kaki-Bashi
Yose-Bashi
Sashi-Bashi
To rake in or shovel food in one's mouth attached to a plate or bowl with chopsticks. To draw near the plate with chopsticks. To hold the food which are difficult to pick by stabbing them.
Namida-Bashi
Komi-Bashi
Neburi-Bashi
To drip the sauce from the food or from chopsticks. To fill up one's mouth by stuffing in more food with chopsticks. To lick the tips of chopsticks.
Nigiri-Bashi
Watashi-Bashi
Tataki-Bashi
To hold two sticks by grasping them. It could be taken as an action of attack. To place chopsticks on top of bowl. To beat a plate or a bowl to call on somebody.

There are numbers of other taboos such as, Madoi-bashi ( perplex), Saguri-bashi(search), Utsuri-bashi (moving around), Yoko-bashi (scoop).