Obama may be faking it but he looks comfortable with Cameron. He has always given the impression of being a cold fish, short on empathy, and I suspect he objects to leaders fawning at his throne. Cameron shares much of Obama’s foreign policy outlook, but he does not resort to simpering platitudes of adoration. When he agrees, he agrees; when he doesn’t, he doesn’t - staunch and self-confident, as Cameron put it in yesterday’s Wall Street Journal.
It’s early days, but the two leaders seem at ease with each other's common ground and differences. The photo-calls never ceased and the good humour flowed. Britain is the junior partner but Obama gave its leader an equal footing; it was never so with Gordon.