Do you denote laughter with a "haha,” "hehe," "lol" or emoticons? Researchers at Facebook have analyzed a week of posts to see which forms of expressions are most popular among certain users.

Lol — Bitch, please OR I have nothing to say. lollllllllll — Yo, that's pretty funny. el oh el — So unfunny I feel the need to type like this. haha — Funny but not worth much of my time.