Disposable Chopsticks Manners:

When I think of disposable chopsticks, first thing on my mind is usually Mr Scorpio. He was the person who used to remind me that we need to pull the sticks away from you on a horizontal plane, so your palms end up facing away from you. In addition, to twist the disposable chopsticks apart vertically can cause splintering. Most important of all, he added, is to smoothen the disposable chopsticks before using them in oder to prevent eating the splinters.

I found one tip from internet on Japanese's disposable chopsticks manners that is extremely interesting:
When you finished using disposable chopsticks (the Japanese calls chopsticks as hashi, meaning "bridge"), put them back in the bag and fold the bag in half. This indicates that they are used!

Warning: Girls, please do not attempt that unless you want splinters on your fingers!!!!!!!!