I think they're talking too and I've attempted to decipher their codes. Here's what I think they're saying today.
NITE: Hey ETMM, do you want to go get coffee and muffins for lunch?
ETMM: Yeah, that sounds good, where at?
NITE: How about Starbucks?
ETMM: Aww man, I can't go. I spent all my lunch money on these little $10 messages. Next time can we just use the phone?
NITE: Oh man, why didn't I think of that? Jeez, wait til I tell UBSS and VERT!