Even if the most important things to avoid when using chopsticks are the ones relates to funeral ritual, it may be fun to know which are the other table manners.
Here is a list:
Arai bashi (洗い箸): Washing chopsticks in soup
Awase bashi (合わせ箸): Passing food from one’s own chopstick to someone else’s chopstick
Chigai bashi (違い箸): Using a mismatched pair of chopsticks
Choku bashi (直箸): Not using the serving chopsticks, but your own sticks to get food from shared plates and place it on your own plate or bowl before eating it
Hane bashi (撥ね箸): Pushing away disliked food with chopsticks
Hotoke bashi (仏箸): Standing your chopsticks up in a bowl of rice
Kaki bashi (掻き箸): Holding a bowl to your mouth and shovelling food in
Kami bashi (噛み箸): Chewing chopsticks
Kara bashi (空箸): Picking up food but not eating it
Kasane bashi (重ね箸): Eating just one dish continuously
Komi bashi (込み箸): Stuffing too much food into your mouth
Mayoi bashi (迷い箸): Hovering chopsticks over the dishes while humming and hawing about what to eat
Mochi bashi (持ち箸): Grabbing a dish, glass, etc whilst holding chopsticks in the same hand
Mogi bashi (もぎ箸): Sucking off grains of rice, etc, stuck to the chopsticks
Namida bashi (涙箸): Allowing tears of soup to drip from your chopsticks
Neburi bashi (舐り箸): Licking your chopsticks
Saguri bashi (探り箸): Stirring soup trying to find that last chunk of tofu, etc
Sashi bashi (指し箸): Pointing at people or things with chopsticks
Seseri bashi (せせり箸): Poking or playing with your food using chopsticks
Soroe bashi (揃え箸): Suddenly lunging at dishes with chopsticks ready
Sukashi bashi (すかし箸): Rather than turning over a fish, picking away the meat from under the bones
Tataki bashi (叩き箸): Making a noise by striking dishes with chopsticks
Tsuki bashi, sashi bashi (突き箸・刺し箸): Spearing food then eating it
Uke bashi (受け箸): Holding chopsticks when asking for more rice
Utsuri bashi, watari bashi (移り箸・渡り箸): Aiming to pick up one dish, but then suddenly switching to another
Watashi bashi (渡し箸): Resting chopsticks sideways across the top of dishes
Yose bashi (寄せ箸): Pulling dishes closer with chopsticks
