Garda everywhere - luckily they're all quite nice and helpful.
Massive crowds - this was just when I was waiting to get in past the barriers, not even at the event itself.
Look at his charming self.
Love the print on Michelle's dress - thought she looked fab!
I won't lie, I teared up a bit when Obama came out, and a bit more as he talked about the American life story being one of immigrants and of hopes. It was just a moment of 'this is my president, I voted for him, and here are all these people in a foreign country out to support him, happy, waving American flags.' It was this weird ex-pat patriotic moment. Plus, I mean, it's not every day you get to see the President of the United States speak, in your own country or otherwise.