10 top sales slip-ups

The greatest salespeople are always happy, even when doors are slamming in their faces.

Strive to be a "happy loser." Rejection is actually inspiring because it allows the game to continue - and all true salespeople love the game.

Getting upset only tarnishes your image as a winner and ruins your chances of closing the sale later. When the customer says no, you say, "Great! That's wonderful!" Then send a little gift.

NEXT: Failing to prepare