03/11/2011 10:17 GMT | Updated 03/01/2012 05:12 GMT

G20 Caption Competition: What Are Sarkozy And Cameron Laughing About?

When David Cameron met Nicolas Sarkozy at the G20 Summit, their first handshake was accompanied by giggles and creases.

Considering that the future stability of the eurozone is at stake amid Greek calls for a referendum over a bailout, what could have been so funny?

Provide your thoughts in the comments section below. The winner gets bragging rights and a speech bubble on the photo.