When you were a kid, you used them to blow your nose or wipe sweat from your face... or both. But hey, you were a kid then.

Nowadays, even when it's not hayfever season, you'll see lots of gay men running around with colorful hankies poking out of their back pockets. Why? Because they know about the hanky code and they are "flagging" to get your attention.

In this installment of our "Know Your Shit" features, Jack tells you how color and placement can get you more of the action you're looking for.