How big of a role does texting play in your life? If you are among the 97% of American smartphone owners who send at least one text every day, it might be time to take another look at your texting etiquette. According to English professor Anne Curzan, there’s a chance you’re doing it all wrong. For example, the use of the period for punctuation has seen some of the biggest changes as a result of texting. “You need to be careful,” Curzan said. “There’s stuff going on with punctuation in texting. It is getting repurposed … and the period has come to be seen as serious, if not a little bit angry.”