She found that all caps made people judge happy messages as even happier (IT’S MY BIRTHDAY!!! feels happier than “It’s my birthday!!!”) but didn’t make sad messages any sadder (“i miss u” is just as sad as I MISS U). When it came to anger, the results were mixed: sometimes caps increased the anger rating and sometimes it didn’t, a result which Heath attributed to the difference between “hot” anger (FIGHT ME) and “cold” anger (“fight me”).