Boy: Hey, I think you were looking great today.
Girl: What??
Boy: :P
Just putting that one smiley at the end of a statement makes it OK. Frees you from the burden of responsibility for owning what you said. What this trend of smileys and slangs like LOL has done is make our conversations less sincere. It has made us responsible for what we say because you can always add a smiley or LMAO and escape the responsibility of being associated with a thought.