Forget the marketing objective of developing "relationships." You know what? Just completely scratch that off your list. It's far too vague and it's not adequate, anyway.
Replace it with something far, far more potent.
Have lots of them. With clients. With people you just meet. With referral sources. With people you buy from. Everyone.
Have frequent, sincere conversations and your business will improve.
And when you're having these conversations, don't forget to smile. There's a wise, old Jewish proverb: "Don't open a shop unless you know how to smile." It's amazing how many business people forget to smile. Especially while they're having a conversation.