eBay Fashion is a new app that lets you shop for clothes with your phone. This sentence in the description caught our eye because it uses quotation marks correctly:
Use it with your phone's camera to "try on" anything you find!Where eBay gets it right: This app is all about virtual shopping, where you can see what different clothes might look like on you. But eBay wants you to understand that you won't actually try on the clothes. The quotation marks make that clear.
Quick rule: Use quotation marks when you want to tell the reader not to take what you're saying literally.