There's a tip given to travellers when they are visiting a country for the first time, especially if they aren't well versed with the language: Smile. Since charm is not the answer to everything, Work The World made a well-charted list of gestures from around the world that might give you an insight into what a person from another nationality might be trying to tell you. Here's your guide for when words fall short in a foreign land.
Well, that's how you say various things to various people in different parts of the world. Hope it helped, cheers!