CLARISA TEXT MESSAGING

This morning Clarisa has come to our class and she taught us some abreviations that the people use in text messages in English:
idc: I don't care
idk: I don't know
asap: As soon as posible
bc: Because
wyd: What you doing
bfn: Bye for now
omg: Oh my god!
lol: Laugh out laud
lmao: Laughing my ass off.
rn: Right now
np: No problem
btw: By the way
gtg: Got to go
brb: Be right back
oc: Of course
jk: Just kidding
ily: I love you
ty: Thank you
ttyl: Talk to you later
u2: You too
omw: On my way
rly: Really
bff: Best friend forever
xoxo: hugs and kisses