FASTEST ways to turn off a guy!

Bring up your ex: If he asks, it's OK to mention your past relationships, but keep it short and sweet on a first date. There's no need to swap ex stories right away, so do yourself a favor and focus on the present.
   
Repeatedly insist on paying: Offering to pick up the tab is nice once, maybe twice, but after that, it starts to seem rude. Allow him to pay and volunteer a polite thanks to preserve his ego.
   
Laugh a lot:  A laugh here and there shows that you have an upbeat, positive attitude. Nonstop giggling through all your sentences? It's a bit much. Relax and be yourself.