PR-D-R-R
Attributed to Jessica Mullens, a San Francisco-based PR specialist with Ketchum:

You see a gorgeous girl at a party. You go up to her and say, "I'm fantastic in bed." That's direct marketing.

You're at a party with a bunch of friends and see a gorgeous girl. One of your friends goes up to her and pointing at you says, "He's fantastic in bed." That's advertising.

You're at a party and see a gorgeous girl. You get up, straighten your tie, walk up to her and pour her a drink. You open the door, pick up her bag after she drops it, offer her a ride, and then say, "By the way, I'm fantastic in bed." That's public relations.

You're at a party and see a gorgeous girl. She walks up to you and says, "I hear you're fantastic in bed." That's... brand recognition.