Predominately used to communicate disinterest.
Jane: And I still can't believe he cheated on me.
Jane: Three times!
Jane: He doesn't care about anything I say or about how I feel!
Jane: You're such a friend and such a great listener, I dunno what I'd do without you.
Jane: Anyway, I gotta run, but I'll definitely talk to you later :)
ST Nerd 1: No way, Picard would totally own Kirk, the technology is WAY more advanced
ST Nerd 2: No way, Kirk's the better tactical leader, and the more advanced weaponry can be mitigated my simply modifying the phase variance of the main deflector array.
<Onlooker has left the chat>
person 2- hi
person 1- TAGGED YOU ON FB LAWL :D
person 2- yeah
person 1- hows you? i am GREAT lol xxxx
person 2- gd....
person 1- lawl :P
person 2- ...
person 1- omg g2g LOVE YOU LAWL
person 1- :* MUWA lol cyyyaaassssszzzz
person 2- K bye