Tip: if you're not sure whether a letter "i" is selected, just look above the AutoCorrect button. Word gives you a description of the currently selected symbol - in this case, "Inverted Exclamation Mark".
Tip # 2: also notice in the screenshot that Microsoft Word keeps track of the 16 most recently used symbols: just double-click on any of them to insert them into your document! In this short tutorial, you've learned no less than three different ways to add this special punctuation mark on the page. Best of all these three techniques works exactly the same way in Word 2013, Word 2010, and Word 2007!