"we all tend 2 write a lil diff when we r writing txt messages with friends. FYI, this shorthand might be hurting your grammar! Seriously, though, strong grammar comes from building good habits, and breaking them when texting can end up leading to the formation of bad ones, which can ultimately lead to poor grammar. This …"
GRAMMAR: This site has a great infographic commenting on the grammar used in text messages. I think that this would be a good conversation starter for a grammar class or introduction to a grammar unit.