Heartbreak. Not a nice feeling, is it?

My friend Amy's solution is to go out and "kiss a boy". To me, it always seemed a bit stupid - like putting salt in the wound. What if the new boy you kissed didn't call you? Surely, then you'd be even more depressed.

But, recently, after a particularly bad break up, she dragged me out to a City bar and said we weren't leaving until I'd locked lips. Some poor sod eventually obliged, and frankly, I did wake up the next morning with a spring in my step. Kissing - or snogging, as you Brits call it - really is one of the all-time great pastimes.

All the more reason to be excited about the Flash Snog. We've been hearing about flash mobs for years now, but never felt particularly eager to get involved - in London, we have enough crowds. But a Flash Snog - now that's something we can get behind.