EATING AND THE RIGHT-HAND RULE
The biggest minefield of potential faux pas has to do with eating. This is usually done with the fingers, and requires practice to get absolutely right. Rule one is: eat with your right hand only. In India, as right across Asia, the left hand is for wiping your bottom, cleaning your feet and other unsavoury functions (you also put on and take off your shoes with your left hand), while the right hand is for eating, shaking hands and so on.