FASTEST ways to turn off a guy!

Vent about work: Every job has its stresses, but that doesn't mean you need to share them. Announcing your work-related worries to someone you've just met is a surefire way to nix the potential, so emphasize the positive or switch topics instead.
   
List your accomplishments: You may think you're just describing your past, but sharing all your greatest achievements can come across as boastful. Nobody likes to feel like you're trying to one-up them, so go ahead and convey your expertise, but counter those comments with thoughtful, curious questions about his abilities.