Bitterness aside, there is some value in being able to directly ping a stranger you heard speak at an event, or you want to really show your interest in a job opportunity, but it still destroys the level playing field that we've all come to know and respect as it relates to digital communication.

ENGADGET: Facebook 'experiment' lets select users pay to have messages routed directly to a stranger's inbox

Did she show sincere interest in your service or product?

FORBES: The Secret to Finding Great Clients

The best way to ensure that your company is the one getting recommended is to be responsive to customers, to prospects, and even to strangers when they, either directly or indirectly, show some interest in your company.

FORBES: The ROI of a Handshake

Ask questions of your date, both to show interest, and to learn about him.

FORBES: Personal Branding After Hours: Applying 10 Rules to Dating

When you want a job, you show the employer that you are serious and upfront about your interest.

FORBES: Personal Branding After Hours: Applying 10 Rules to Dating