He seems at ease, laughing at things happening to him, he also seems well rested and composed. I hope people won't read this as a sign he is doing fine and that he feels light about this situation.
There's a very good chance one of his endeavours in the coming weeks goes absolutely wrong, and he ends up in some u.s. prison, and this video of his heavy speech in which tension is relieved by cheery laughter over the absurdness of being at this airport for so long could be the last thing we ever saw of him as a person.
I read this as a sign he's not being tortured or mistreated. He seems in good spirits and overall a nice person who has a sense of humor. Although Putin wants him out of the country unless he stops the leaks, at least he's getting along ok at the airport. Not that Putin should be congratulated for this as it's all politics, but compare this to our treatment of Bradley Manning. Had Manning been released on bail for the time before his trial and allowed to speak publicly, we might have come to know and like him in the same way as Snowden.
There's a very good chance one of his endeavours in the coming weeks goes absolutely wrong, and he ends up in some u.s. prison, and this video of his heavy speech in which tension is relieved by cheery laughter over the absurdness of being at this airport for so long could be the last thing we ever saw of him as a person.