You can find all kinds of interesting things on the internet. This one is pretty entertaining and helpful for all those single guys out there. Straight from the Wired Wiki:

The Dab

Surreptitiously dab a thin layer of lip balm on the tip of a ballpoint pen.

The Approach

Approach your target and tout your special mind-reading power: “I can pick out your digits from a collection of phony ones.” With your eyes averted, tell the hottie to jot down their actual phone number on a paper coaster and then 10 fake ones in any orientation.

The Coaster

When you get the coaster back, take out your cell and say, “Now all I have to do is make a few calls …” Cue laughter. Now examine the coaster. The first numeral in the correct number will begin with an inkless groove of oil and develop into a solid line. Bingo!

Contributed by Chris Lesinski

Pretty entertaining, made me dig out some chap stick just to try it out. And yes, it does work.

(Via Wired)