I suppose it matters whether people where you live are generally
friendly or not.
If you're not used to it, being cvil can easily be mistaken for
making a play.
Oh, and don't be fooled by the:
"Make her laugh and she's yours" trap.
Make her laugh and it's just as likely that, sooner or later, you will be hit by the stomach-pulling
"You're like a big brother to me" line, and that pisses on your chips like nothing else.