Follow these easy steps.
1) You see a friend of yours on Foursquare check in and it says
"Tom L @ [off the grid] ...checked in, but hiding their whereabouts!"
2) Text them IMMEDIATELY saying:
"Foursquare: Congratulations! You've unlocked a special Douchebadge! We know you're at Cipriani and we're telling everyone!!"
or how about...
"Foursquare: Since you're so close to Janet B. at Fette Sau she says "Come over and buy me a drink and my next "check-in" is at your place!"
It's basically impossible to tell the difference between a text and a push notification when it comes to your homescreen, so have fun. Of course it works better if they don't have your number programmed in their phone.
It's been a while since my last post, because I was working on a post about China Mobile that went up on the business insider recently, thanks @fromedome. Also, I never put up the video I received via email from Sarah Lacy after the Beijing trip. I wasn't sure if this video was for public consumption, but the only people who'd mind are Yan and I. Thanks @sarahcuda !