Not a single handshake. They really hate him.
This is especially interesting considering the summit consisted of the G20 and was an attempt to find a solution to the current finanacial crisis. Furthermore, the summit was in Washington and Bush was the host.
He got the cold shoulder anyways.
You can see 'The Great Decider' shuffle past each head of state, staring at his shiny shoes. Not a single hand is extended to him. Not a single smile. A proud leader of the most powerful nation in the world? Or the final failure of a nation in steep decline?
There is abosulutely no way in hell this could happen to Obama.