Whether you use “haha,” “hehe,” or “lol” has more to do with your age and where you live than anything else, the social network finds.
Conveying that you find something humorous in real life can be challenging enough. (“Is a smile enough here, or do I need to laugh?” or “Wait, they look hurt. Did I actually laugh, or just laugh in my head?”) But on the Internet, laughing can be serious business. Is that “LOL” coming across as sarcastic? Does “heh” mean a joke fell flat? And does a crying emoji indicate more laughter than an emoji sticking its tongue out?