I just heard that in Britain, extending the index and middle fingers at the same time (the way an American would gesture for the number 2) is an rude or obscene gesture, equivalent to the American gesture with only the middle finger raised. Is this true? Are Americans who think they're asking for a table for two in restaurants unknowingly "flipping the bird" ?
I do remember learning years ago that ithe French signal "2" by extending the thumb and index finger -- a gesture that looks to an American as if it should be accompanied by the words, "Bang. You're dead." (That is, mimicking a handgun.)