Well, here in China, the answer is anywhere.
The correct method for belching (must be done after lunch) is to stick chin out, open mouth wide, and let rip. Keep going until it's all out. Ladies especially, and in meetings, all good.
With regards farting, it doesn't happen much, probably diet. Chinese medicine says "if it wants out, it's bad and should come out immediately", applies to all gases/fluids/phlegms. Working in a Hong Kong office when a cold is going round is quite an experience.
The correct method for belching (must be done after lunch) is to stick chin out, open mouth wide, and let rip. Keep going until it's all out. Ladies especially, and in meetings, all good.
With regards farting, it doesn't happen much, probably diet. Chinese medicine says "if it wants out, it's bad and should come out immediately", applies to all gases/fluids/phlegms. Working in a Hong Kong office when a cold is going round is quite an experience.