Before you take off on your next vacation, you might want to brush up on your sign language. You don't want to wind up insulting a cab driver you're trying to flag down in the pouring rain or anger the waiter bringing you your coffee.
So as you pack up your Lonely Planet guide, you might want to look at our book of the week: Don't Get Me Wrong: The Global Gestures Guide. It will show you how everyday gestures are interpreted in countries all over the world. Hopefully it will keep you out of trouble during your travels.