Punctuation two styles differ mainly in the way in which they handle quotation marks, particularly in conjunction with other punctuation marks. In British English, punctuation such as periods and commas are placed outside the closing quotation mark; in American English, however, punctuation is placed inside the closing quotation mark. This rule varies for other punctuation marks; for example, American English follows the British English rule when it comes to semicolons, colons, question marks, and exclamation points. Other languages of Europe use much the same punctuation as English. The similarity is so strong that the few variations may confuse a native English
Irony punctuation Also it is common to use the combination of a parenthesis and a interrogation symbol as "(?" to mark irony A "SarcMark" symbol requiring custom computer font software was proposed in 2010. Another method of expressing sarcasm is by placing a tilde (~) adjacent to the punctuation. This allows for easy use with any keyboard, as well as variation. Variations include dry sarcasm (~.), enthusiastic sarcasm (~!), and sarcastic questions (~?). The sports blog "Card Chronicle" has adopted this methodology by inserting (~) after the period at the end of the sentence. It has also been adopted by the Udacity