Travelling to all corners of the world is getting much easier and simpler.
In France you shouldn't sit down in a cafard untill you are shaken hands with everybody you know.
In Afghanistan you 'd much better invest at last 5 minutes stating hi.
In the Middle East you should never ever use the left hand for welcoming, consuming, drinking or cigarette smoking.
In Thailand you need to clasp your hands togerther and lower your head and your eyes when you welcome someone.
In France you should not sit down in a cafard untill you are shaken hands...