#1: Using abbreviations
Abbreviations are a big no no in the rules of texting a woman. Things like (ily) instead of the old fashioned i love you. It shows lack of effort and interest , specially if you're trying hard to impress her remember never to abbreviate. Sure, keeping things casual is cool but face it boys, all a woman is looking for is a MAN and not some teen punk who needs a dictionary thrown at his face awkay?